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What is the decision rule

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Reference no: EM131509073

The following information is available. 

H0 : μ ≥ 220 

H1 : μ < 220 

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.

a. Is this a one- or two-tailed test? One-tailed testTwo-tailed test 

b. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)

(Click to select)

Do not reject

Reject

H0 when z <    

c.What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)

Value of the test statistic   

d.What is your decision regarding H0?   RejectDo not reject 

e.What is the p-value? (Round your answer to 4 decimal places.) 

 p-value

Reference no: EM131509073

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