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Please no guessing! Condfident answers only! A pharmaceutical company conducts a randomized controlled trial to determine the efficacy of a newly developed topical solution for inducing hair growth in men with male pattern baldness. Company researchers decide that average hair count must increase by at least 20% in the drug-treated group, compared to the placebo group, to be considered a clinically meaningful difference. They select a sample size that will ensure 80% power for the statistical test, and carry out this test at the 5% level of significance. Which of the following statements best describes alpha, the level of significance? If average hair growth differs between the groups, the chance that the statistical test will detect a significant difference between the groups is at least 95%. If average hair growth does not differ between the groups, the chance of detecting a statistically significant difference between the groups in terms of hair growth is 5% or less. The chance of detecting a statistically significant difference between the groups is 95%. A statistically significant result will be obtained 5% of the time that a true difference exists between the groups. None of these. Solution Answer: d.

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STATISTICS PRACTICE QUIZ 3 Question 1 A telecommunications company asserts that, according to a study they conducted, patients who have access to more cable channels during recovery from surgery are discharged sooner than those who receive only basic cable in their hospital rooms. Which of the following demonstrates clinical significance of the study? Patients with more cable channels were discharged an average of one-half day sooner than those with fewer channels The study used a sample size of 12 Patients with fewer cable channels requested additional nursing support an average of 3 times more during their recovery. Patients with more cable channels tended to prefer nature and arts channels over history or news and current affairs channels Question 2 After completing the power analysis, the researchers determine they need a sample size of 400 to have adequate power in their study. After enrolling subjects, they have a lower response rate than anticipated and they only enroll 320. Inadequate enrollment may increase the risk of: A type II error Systematic bias A type I error Statistical significance Question 3 Researchers study the relationship between interpersonal violence and health in college age women. The researchers examined the average score on a psychological distress scale and compared the score for abused versus non-abused women. If the researchers report a statistically significant difference and are incorrect about this conclusion what type of error could it be? A type I error A type II error A clinical error An error of omission Question 4 Researchers studied the relationship between Vitamin B12 consumption and hair growth and report a p value of 0.56. The study was a pilot study with an alpha of 0.10. You know this means: There is no statistically significant relationship between Vitamin B12 consumption and hair growth. Vitamin B12 consumption is association with a 56% increase in hair growth. The sample size was too small and a type I error was made There is a statistically significant relationship between Vitamin B12 consumption and hair growth. Question 5 Researchers study the relationship between interpersonal violence and health in college age women. They selected an alpha of 0.05. The researchers examined the average score on a psychological distress scale and compared the score for abused versus non-abused women. A p value of 0.016 is reported. Based on this information, you know: There is a statistically significant difference in the average psychological distress score This is a clinically significant result There is no significant difference in the average psychological distress score. In this study women who were abused were statistically more likely to report psychological distress. Question 6 A study reports that administering vancomycin incorrectly is associated with red man syndrome. You know this means: The p value is less than alpha A type I error was made in administering the medic.

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Natural argan oil is known for its revitalizing action of the hair, especially at its root (radical action). Argan oil prolongs the life of the hair and promotes growth both in men than women, because it stimulates the production of keratin , an essential constituent of hair. Our luscious ARGANRain products are formulated expertly using organic argan oil and plant based ingredients to make your hair grow faster, stop hair loss and full of life.ArganRain can be a fast way to help stop thinning hair, can help stop baldness, and help promote hair growth. Creating a healthy environment on the scalp is key to having thick, full hair growth.

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Please list the steps of the accounting cycle.Why is this important to the accounting profession? Solution Accounting cycle means the cycle by which we convert the raw data into proper financial statements that provides information to outsiders and stakeholders and easier to understand Steps in accounting cycle are as follows: 1) Transaction 2) Journal Entries 3) Posting in Ledger 4) Preparing trial balance 5) Worksheet 6) Adjusting journal entries 7) Preparing financial statements 8) Closing the books of accounts.

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Please let me know about the material structure and properties of Solar energy. I also want toknow the relationships of structure and properties of it. Solution Photovoltaic solar cells are thin silicon disks that convert sunlight into electricity. These disks act as energy sources for a wide variety of uses, including: calculators and other small devices; telecommunications; rooftop panels on individual houses; and for lighting, pumping, and medical refrigeration for villages in developing countries. The basic component of a solar cell is pure silicon, which is not pure in its natural state.To make solar cells, the raw materials.

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please identify true or false Solar flux or solar constant is the total amount of energy the sun emits. Carbon dioxide is one of the six criteria pollutants regulated under Clean Air Act. Lakes with high nutrient levels are considered oligotrophic. An ecosystem in its matured stage is more dependent on detritus for nutrient regeneration than a developing ecosystem. Ground-level ozone is a secondary pollutant. The impact of human activities on the environment can be summarized as: Impact = Population x Affluence x Technology Bata (beta) radiation can travel longer distance than alpha (alpha) particles in the air. Animal manure is an example of the hazardous waste. Solution 1. Solar constant is the rate at which energy reached the earth surface. so, answer is false. 2.According to clean air act, Six pollutants are carbon dioxide, ground level ozone, particulate matter, nitrogen dioxide, lead, sulfur dioxide. so, answer is true 3.Lake with high nutrient content is known as eutrophic lake. So, ans is false 4.Secondary pollutants are those which are not directly emitted. so, Ground level Ozone is a secondary pollutant So, True 5. I= PAT is known a impact equation where I = Impact of human on the environment, P=population, A= affluence, T= Technology So, true (ans) 6.Beta radiation travels few times farther than alpha particles so, ans is true. 7. Human manure is not a hazadous waste. Answer is false.

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PLEASE HELP....Scenario: In the five years since the midterm scenario, the drainage project has been a tremendous success and the City of Ocelot has grown rapidly as the healthier environment has attracted new residents and businesses. The population of Ocelot is now about 40,000 with a range of incomes from very wealthy to about 10% below the poverty level. Housing ranges from high-end houses and condominiums to publicly subsidized apartments. The ethnic distribution of the population is 60% Anglo-American, 20% Hispanic-American, 12% African-American, 5% Asian-American, and 3% Native American. 1. The distinguished professors of organization theory, Dr. Virgil Hilts and Dr. Robert Hendley, disagree over how to analyze decision-making regarding the drainage project. Both believe the rational model is too idealistic, and Dr. Hilts argues that the “bounded rationality” model best applies to the approach taken by the City of Ocelot. Dr. Hendley, on the other hand, believes that Lindblom’s model of “muddling through” offers a better explanation of how matters developed. A third opinion is offered by Dr. Roger Bartlett, who believes that a “mixed scanning” model best explains the successful decision- making for the young city. Compare and contrast these three approaches, and explain your view of which model (bounded rationality, muddling through, or mixed-scanning) best applies to the developments in Ocelot. 2. Dr. Hilts and Dr. Hendley also disagree on whether Tiebout’s model offers much explanation for the population growth Ocelot has experienced in growing from 30,000 five years ago to the current population of 40,000. Dr. Hilts argues that residents of neighboring communities have “voted with their feet” as Ocelot’s policies have generated a desirable quality of life in comparison to surrounding areas and directs attention to a thriving retirement community that includes many new arrivals. Dr. Hendley replies that the bulk of the in-migration is younger people attracted by jobs created by new businesses that have located offices in Ocelot. Explain which view you find more persuasive, or can the insights of these two views be combined? Solution Given : Population of Ocelot =40000, 10% below poverty line, Ethinic distribution= 60%, Anglo ameican=20%, Hispanic american=20%,African American =5%, Asian american and 3%Native american Various models in consideration Bounded rationality method can be combined with mixed scanning of the date in order for it present a particular required output and plans for the given city.Bounded rationalityMuddling throughMixed scanningRemarksThis is a way of rationally selectingA random way to make the plans and execution sucessMixed scanning is a hierarchial mode of descison making that combines higher order, fundamental decision making with lower order , incremental decision that work out and or prepare for the higher order .Limited to information availbale and timeLess chances of getting things accuratelyModerate c.

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Please I need help with abstract algebra Will rate quickly Solution In algebra, which is a broad division of mathematics, abstract algebra is a common name for the sub-area that studies algebraic structures in their own right. Such structures include groups, rings, fields, modules, vector spaces, and algebras. The specific term abstract algebra was coined at the beginning of the 20th century to distinguish this area from the other parts of algebra. The term modern algebra has also been used to denote abstract algebra. Two mathematical subject areas that study the properties of algebraic structures viewed as a whole are universal algebra and category theory. Algebraic structures, together with the associated homomorphisms, form categories. Category theory is a powerful formalism for studying and comparing different algebraic structures. History As in other parts of mathematics, concrete problems and examples have played important roles in the development of abstract algebra. Through the end of the nineteenth century, many -- perhaps most -- of these problems were in some way related to the theory of algebraic equations. Major themes include: Numerous textbooks in abstract algebra start with axiomatic definitions of various algebraic structures and then proceed to establish their properties. This creates a false impression that in algebra axioms had come first and then served as a motivation and as a basis of further study. The true order of historical development was almost exactly the opposite. For example, the hypercomplex numbers of the nineteenth century had kinematic and physical motivations but challenged comprehension. Most theories that are now recognized as parts of algebra started as collections of disparate facts from various branches of mathematics, acquired a common theme that served as a core around which various results were grouped, and finally became unified on a basis of a common set of concepts. An archetypical example of this progressive synthesis can be seen in the history of group theory. Early group theory There were several threads in the early development of group theory, in modern language loosely corresponding to number theory, theory of equations, and geometry. Leonhard Euler considered algebraic operations on numbers modulo an integer, modular arithmetic, in his generalization of Fermat\'s little theorem. These investigations were taken much further by Carl Friedrich Gauss, who considered the structure of multiplicative groups of residues mod n and established many properties of cyclic and more general abelian groups that arise in this way. In his investigations of composition of binary quadratic forms, Gauss explicitly stated the associative law for the composition of forms, but like Euler before him, he seems to have been more interested in concrete results than in general theory. In 1870, Leopold Kronecker gave a definition of an abelian group in the context of ideal class groups of a number field, generalizing .

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Please I need a help in this Q Write a sine function and a cosine function which match the following graph. Note that the x-axis goes from 0 to 2 pi and the y-axis goes from -7 to 8. Solution sine function peak to peak = 8 so one peak = 4 it\'s shifted 2 units downward , and the period is 2pi/2 = pi f(x) = 4 sin(2x) - 2 cosine like sine but shifted right by (pi / 4) f(x) = 4 cos 2(x - pi/4) - 2 => f(x) = 4 cos (2x - pi/2) - 2.

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please help A researcher is investigating the relationship between personality and birth order position. A sample of college students is classified into four birth-order categories (1st, 2nd, 3rd, 4th or later) and classified as being either extroverted or introverted. Solution Chi-Square Test for Independence to determine whether there is a significant association between the two variables(personality and birth order position).

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please select one option Q1. HRM is associated with the management of: A. General people B. Financial resources C. Organizational people D. Community members Q2. Which of the following management function includes settingstandards for everyone in the organization? A. Planning B. Organizing C. Leading D. Controlling Q3. Motivating the employees is classified as: A. Informational role B. Interpersonal role C. Decisional role D. Conceptual role Q4. Which of the following is the main responsibility of an HRdepartment? A. Attracting candidates for job B. Ensure staff development C. Keep employees motivated D. All of the given options Q5. HR managers are generally the _______________ managers: A. Line B. Middle C. Staff D. Top Q6. Manufacturing was the main concern of personnel departmentduring: A. Mechanistic period B. Catalytic period C. Organistic period D. Strategic period Q7. Running the organizational activities is called: A. Management process B. Executive position C. Quality management D. Performance measurement Q8. Jobs are identified & grouped while: A. Planning B. Organizing C. Leading D. Controlling Q9. Effective HRM leads to: A. Organizational success B. Organizational failure C. Organizational complexity D. Organizational inefficiency Q10. Organizational goals should be: A. Achievable B. Ambiguous C. Random D. Vague Q11. Customers of an organization fall under which of the followingcategory? A. Shareholders B. Staff C. Partners D. Stakeholders Q12. What could be the best approach for an organization to sustainin a dynamic environment? A. Be stagnant B. Responsive to change C. Reluctant to change D. Merge with others Q13. The thorough & detailed study regarding jobs within anorganization is represented by: A. Job analysis B. Job description C. Job specification D. Job evaluation Q14. A practice used by companies to assign their costly activitiesto outside providers is known as: A. Planning B. Decentralization C. Restructuring D. Outsourcing Q15. Organizational behavior depicts the: A. Jargons used within the organization B. Collective behavior of employees C. Effect of society’s behavior on an organization D. All of the given options Q16. Leaders perform: A. Decisional roles B. Informal roles C. Informational roles D. Interpersonal roles Q17. Organizations take inputs from: A. Rules & policies B. Internal environment C. External environment D. Legislations & litigations Q18. Which of the following system represents interrelatedactivities? A. A closed system B. An isolated system C. An open system D. A clogged system Q19. Brain drain is one of the: A. Organizational threat B. Organizational opportunity C. Organizational strength D. Organizational weakness Q20. Shifting from manual to computerized system is resulted dueto: A. Workforce diversity B. Technological advancement C. Stake holders involvement D. Globalization Solution 1.c 2.c 3.c 4.c 5.c 6.a 7.d 8.b 9.d 10.a 11.d 12. a 13.a 14.d 15.d 16.c 17.c 18.c 19.b 20.b.

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Please reflect on the role of NPV and payback period in evaluating investment alternatives. How does this effect us as investors? Solution When evaluating a project or long term investment of company, it is important to reach right decisions based on the capital budgeting methods. Net Present Value (NPV) For a project with one investment outlay, made initially, the net present value (NPV) is the present value of the future after-tax cash flows minus the investment outlay. Because the NPV is the amount by which the investor\'s wealth increases as a result of the investment, the decision rule for the NPV is as follows: Payback Period The payback period is the number of years required to recover the original investment in a project. The payback is based on cash flows. For example, if you invest $10 million in a project, how long will it be until you recover the full original investment? Payback period methods is simple and easy to understand, however, it has many drawbacks. First, it is a measure of payback and not a measure of profitability. By itself the payback period would be a dangerous criterion for evaluating capital projects. The payback period may also be used as an indicator of project liquidity. A project with a two- year payback may be more liquid than another project with a longer payback. Because it is not economically sound, the payback period has no decision rule like that of the NPV or IRR. If the payback period is being used (perhaps as a measure of liquidity), analysts should also use an NPV or IRR to ensure that their decisions also reflect the profitability of the projects being considered..

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Please quickly I\'m taking the exam now. - What are the four reasons or justifications for government interventionin the economy? Describe two in details, providing an example of eash. Solution Govt intervention is required due to following reasons: 1. Establishing equity based society 2. Presence of negative and positive externalities 3. Macro economic instabilities 4. Making Public goods available Detailed Discription: 1. Macro economic stablisation: Present days economic system is subject to fluctuation due to inflation and recession. Recession is matter of worry where the unemployment issue comes to fore. here private system doesn ot work efficienty and cringe from investing in the economic activities. here govt can interven in the system by making huge stimuls package by investing in varied economic activites. The recent recession in the USA is an example of this where the govt released stimulus packages to deal with problem of recession. 2. Public goods: Public goods such as the road and transportation can not be left to the private sector. Private sector is quite unattentative to invest in public goods. These goods have high positive externalites and are not supposed to provide direct benefits. Hence govt must provide these goods..

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Please Provide details and I will raterigh. Solution Let |S| = m , an integer, and let |T| = n . We aregiven that m > n. Now function f can map to one or more elements of T. Thebest case for the most number of distinct mappings is when f coversor reaches all elements of T. In this situation, thereare m-n overflow elements in S that map to a previouslymapped element in T (pigeon hole principle). Or restated,there are elements s1 ands2 in S such thatf(s1) = f(s2). If f does not cover T, then there exists some element t1 in Tthat is not reached. So, some other element of T is reachedby one or more elements in S by f. Or, as before, thereexist one or more elements s1, s2 of S where f(s1)=f(s2).

Please Provide details and I will raterigh.SolutionLet S = m.pdf

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Please provide detailed solutions: To test a proportion of defective items with no prior data we draw a sample Xn = (X1,..., Xn) from a Bernoulli population with an unknown Find the likelihood function f1(x1,,xn| theta ) of sample Find the global maximum v of fn [Find a critical point and show that it is a local maximum point and the global maximum point of fn.] Argue that v ia an m.l.e of theta Find the m.l.e theta of theta. Show that theta is unbiased. The number of connections to a wrong phone number is often modeled by a Poisson distribution. Suppose we need to estimate the parameter lambda of that distribution (the mean number of wrong connections) by observing a sample x1,...,xn of wrong connections on n different days. Assuming that sigma = x1 + ... + xn > 0. find the m.l.e. and MLE of lambda . Prove that the MLE of lambda is unbiased Solution 1)fn=nCr*(p)^(r)*(1-p)^(n-r) 2)at n=r+1 i can give detailed explanatary solution of all but rate me first.

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Please provide answer to question 9.2 page 231 of Manufacturing Engineering and Technologhy, Seventh Edition. Solution In a composite there are two constituent materials. They are matrix and the reinforcement fibres. Reinforcements fibres are embedded in the matrix. Fibres are generally of very high strength and stiffness. Matirx transfer the load between the fibres. During tension fibres handle most of the load but during compression matrix plays a major role in supporting the fibre..

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Please provide a step by step and explanation. Turner\'s syndrome is a rare chromosomal disorder in which girls have only one X chromosome. The condition affects about 1 in 2000 girls in the United States. About 1 in 10 girls with Turner\'s syndrome suffers from an abnormal narrowing of the aorta. In a group of 4000 girls, what is the probability that no girls are affected with Turner\'s syndrome? That one girl is affected? Two? At least three? In a group of 170 girls affected with Turner\'s syndrome, what is the probability that at least 20 of them suffer from an abnormal narrowing of the aorta?... Solution We want to use Poisson\'s distribution equation for this probability = expected number^actual number* e ^(-expected number)/actual number factorial (a) we would expect 2 out of 4000 so chance that none are affected is 2^0 (e^-2)/0! 0! = 1 2^0 = 1 e^-2 = 0.135335283 So, probability that none of the girls is affected is 0.135 or 13.5 percent One girl 2^1(e^-2)/1! this is twice as much as we had before Probability of one girl being affected = 0.27 or 27% Chance that two girls are affected, this is the expected number, so we are expeting a high probability here chance that two are affected = 2^2(e^-2)/2! = 0.27 or 27% The chance that at least three are affected is the total probability minus the chances that 0, 1, or 2 are affected Chance of three or more = 1 - 0.135 - 0.27 - 0.27 = 0.323323584 So there is a 32% chance that three or more will be affected. (b) now we expect 17 girls would have the narrowing of the aorta (10% of 170 is 17). The question has a typo, but we could use the same equation. I assume you are asking for one girl, two, and at least three. The odds for only one or two girls to have narrowing is very low. 17^1*(e^-17)/1! = 7.03789E-07 are the odds that only one of the 170 girls has the narrowing 17^2*(e^-17)/2! = 5.98221E-06 are the odds that only two of the 170 girls have the narrowing The odds that at least three have the narrowing is one minus the odds that none, one, or two have the narrowing. Odds that zero have it = 17^0*(e^-17)/0! = 4.13994E-08 So the odds that at least three have the narrowing when we expect seventeen to have the narrowing is 1 - 4.13994E-08 - 7.03789E-07 - 5.98221E-06 = 0.999993273 In other words, there is just about 100% chance that at least three will have the narrowing. Again, you have a typo in (b) so you should make sure that you were asked to find this out instead of something else..

Please provide a step by step and explanation. Turners syndrome is.pdf

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Please provide a detailed explanation. Prove by induction on n that nk =2K/(2K - 1)2(2K + 1)2 = n2 + n/(2n + 1)2.| Solution Consider for n=1 LHS=2*1/[(2-1)^2*(2+1)^2] =2/9 RHS=(1^2+1)/(2+1)^2 =2/9 Hence the given expression is true for n=1 consider the given expression is true for n hence k=1n (2k/(2k-1)^2(2k+1)^2)=n^2+n/(2n+1)^2---------->A consider for n+1 LHS= k=1n+1 (2k/(2k-1)^2(2k+1)^2) =[k=1n (2k/(2k-1)^2(2k+1)^2) ]+(2*(n+1)/(2(n+1)-1)^2*(2(n+1)+1)^2) =(n^2+n)/(2n+1)^2 +(2(n+1)/(2n+1)^2*(2n+3)^2) =[(n+1)/(2n+1)^2]*(n+(2/(2n+3)^2)) =[(n+1)/(2n+1)^2]*(n*((2n+1)+2)^2)+2)/(2n+3)^2 =[(n+1)/(2n+1)^2]*(n*(2n+1)^2+n*2*(2n+1)*2+n*4+2)/(2n+3)^2 =[(n+1)/(2n+1)^2]*(n*(2n+1)^2+n*2*(2n+1)*2+2*(2n+1))/(2n+3)^2 =[(n+1)/(2n+1)]*(n*(2n+1)+4n+2)/(2n+3)^2 =[(n+1)/(2n+1)]*(n*(2n+1)+2*(2n+1))/(2n+3)^2 =(n+1)*(n+2)/(2n+3)^2 =(n+1)(n+2)/(2n+3)^2 RHS=((n+1)^2+(n+1))/(2(n+1)+1)^2 =(n+1)(n+1+1)/(2n+3)^2 =(n+1)(n+2)/(2n+3)^2 since LHS=RHS The given expression is true for n+1 Hence by principle of mathematical induction,the given expression is true for all values of n..

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Please post your response to the following focus questions: What is the difference between a felony and a misdemeanor? What is the State Solution Misdemeanors are usually crimes that are considere to be not so serious, examples included but not limited: minor drug offense, DUI, minor thefts. Felonies in the other hand are the most serious type of crime and are classified by degrees, the first degree being the most serious one, examples are: murder, rape. grand theft, etc. Reference: http://www.hg.org/ The burden of proof is placed on the State, who must demonstrate that the defendant is guilty before a jury may convict him or her. But in some jurisdiction, the defendant has the burden of establishing the existence of certain facts that give rise to a defense, such as the insanity plea. Reference: http://legal-dictionary.thefreedictionary.com/burden+of+proof.

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