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In formulating the null and alternative hypothesis, which of the following would be an acceptable null hypothesis? a. the population mean is greater than 20 b. the population mean is smaller than 20 c. the population mean is equal to 20 d. the population mean is not equal to 20 e. none of these . Solution c). The population mean is equal to 20 The null hypothesis takes the stance of nothing has changed or there is no difference..

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Phishing attacks can occur using which of the following? Cell phones Personal digital assistants Traditional computers Websites Solution Cell phones Personal digital assistants Traditional computers Websites Phishing attacks are not limited to traditional computers and websites; they may also target mobile computing devices, such as cell phones and personal digital assistants. To perform a phishing attack, an attacker creates a website or e-mail that looks as if it is from a well-known organization, such as an online business, credit card company, or financial institution in the case of cell phones; it is often the SMS/MMS attack vector or calls with spoofed caller-ID..

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Phenotypes of Peas. Biologists conducted an experiment to determine whether a deficiency of carbon dioxide in the soil affects the phenotypes of peas. Listed below are the phenotype codes, where 1 = smooth-yellow, 2 = smooth-green, 3 = wrinkled-yellow, and 4 = wrinkled-green. Can the measures of variation be obtained for these values? Do the results make sense? Explain 2 1 1 1 1 1 1 4 1 2 2 1 2 3 3 2 3 1 3 1 3 1 3 2 2 Solution Yes.

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pertaining to capital budgeting, what method can be used as a \"check\" figure for the NPV? Solution There are many techniques in capital budgeting includes payback period, accounting rate of return, net present value, internal rate of return etc. The net present value (NPV) method is a process of calculating the present value of cash flows (inflows and outflows) of an investment proposal, using the cost of capital as discounting rate..

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Peter had been a human resource (HR) manager for 18 years and vice president for 2 more years for Zyedego Corporation, a small company in New Orleans. In the last decade, there have been many changes to what potential/actual employees can be asked and what constitutes fair and equitable treatment. Frankly, the situation Peter was in was partly his own fault. The first issue began with Hurricane Katrina. In its wake, Zyedego employees had been working around the clock to get the company up and running again. The company had been calling all employees (if they could locate them) to get them to return to work. Gwyn, one of Peter’s HR managers, was planning on rehiring Dana Gonzales but found out that Dana was pregnant. Because of the “rough” condition of the workplace, Gwyn was concerned for Dana’s safety. Gwyn felt that if Dana were rehired, employees’ hourly wages should be decreased by 25 percent because the company had experienced setbacks during the hurricane and had to work with a reduced budget. In addition, Gwyn had some concerns over Dana’s citizenship because her passport appeared to be questionable. The flooding destroyed the original documents, and although Gwyn requested new documents, Dana had been slow in providing them. Gwyn had asked some difficult questions, and Dana stated that if not rehired she would go to a competitor and expected the company to pay severance of two weeks’ wages for the time she was out of work during the hurricane. Another issue is the hiring of truck drivers. Zyedego hires many truck drivers and routinely requests driving records as part of the preemployment process. Several of the potential new hires have past DWI records. All have stated that they would never do it again, have maintained a clean record for at least five years, and understand the consequences of another infraction. Gwyn has hired some drivers with infractions to secure the necessary number of drivers needed for the company. However, Gwyn has some concerns over whether she is exposing the company to unnecessary risk because of the increased potential for accidents or repeat DWI violation. From Peter, Gwyn needs guidance related to continuing these hiring practices. However, Zyedego has even deeper problems, which is what concerns Peter. The problem really started when Peter was still an HR manager, and involves one “family.” Guy Martin started working for Zyedego 20 years ago. He was married with two children, and had a mortgage. A little over a year ago, Guy separated from his wife, and they divorced only to remarry six months later. When Guy was hired, Peter had made sure that Guy’s son, who has asthma, would be covered by health insurance. Peter also helped out the family several times when money was tight and provided Guy with overtime work. But tragedy struck the Martins when Guy was killed in the hurricane. Police and rescue workers hunted for his body, but it was never found. Because Martha, Guy’s wife, was a stay-at-home mother, t.

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