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Testing: H0:28.9H1:<28.9 Your sample consists of 29 values, with a sample mean of 28.7.
Suppose the population standard deviation is known to be 2.16 . a) Calculate the value of the test
statistic, rounded to 2 decimal places. b) At =0.08, the rejection region is z<1.41z>1.41z>1.75z<
1.41orz>1.41z<1.75z<1.75orz>1.75 c) The decision is to Accept the null hypothesis. Fail to reject
the null hypothesis Reject the null hypothesis Accept the alternative hypotheis d) Suppose you
mistakenly failed to reject the null hypothesis in this problem. what type of error is that? Type II
Type I

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Testing H0289H1lt289 Your sample consists of 29 value.pdf

  • 1. Testing: H0:28.9H1:<28.9 Your sample consists of 29 values, with a sample mean of 28.7. Suppose the population standard deviation is known to be 2.16 . a) Calculate the value of the test statistic, rounded to 2 decimal places. b) At =0.08, the rejection region is z<1.41z>1.41z>1.75z< 1.41orz>1.41z<1.75z<1.75orz>1.75 c) The decision is to Accept the null hypothesis. Fail to reject the null hypothesis Reject the null hypothesis Accept the alternative hypotheis d) Suppose you mistakenly failed to reject the null hypothesis in this problem. what type of error is that? Type II Type I