SOLUTION: A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis usin

Question 779110: A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level.
(Provide all five steps of the hypothesis test a., b., c., d. and e.)
a. Is this a one- or two-tailed test?
b. What is the decision rule?
c. What is the value of the test statistic?
d. What is your decision regarding H0?
e. What is the p-value? Interpret it.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level.
(Provide all five steps of the hypothesis test a., b., c., d. and e.)
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What are you testing? u = 215 or u > 215 or u < 215 or u # 215 ???
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Cheers,
Stan H.
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a. Is this a one- or two-tailed test?
b. What is the decision rule?
c. What is the value of the test statistic?
d. What is your decision regarding H0?
e. What is the p-value? Interpret it.

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