Consider the following hypothesis test:   H0:μ = 15   Ha:μ ≠ 15   A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3. a.  Compute the value of the test statistic. b.  what is the p-value? c.  At  α = 0.05, what is your conclusion? d.  what is the rejection rule using the critical value? what is your conclusion?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Consider the following hypothesis test:
 
H0:μ = 15   Ha:μ  15
 
A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3. a.  Compute the value of the test statistic. b.  what is the p-value? c.  At  α = 0.05, what is your conclusion? d.  what is the rejection rule using the critical value? what is your conclusion?
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