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Perform a hypothesis for the null and alternative hypotheses: ??:?? =? ??:?? <? The following is...

Perform a hypothesis for the null and alternative hypotheses:

??:?? =? ??:?? <?

The following is the sample information.

?̅=?.? ?? =?.? ?=?? ?=?.??

a. (1 point) Calculate the appropriate test statistic, p-value, and give a general conclusion of reject or fail to reject the null hypothesis based on the significance level. Show all work

b. (1 point) Now suppose you know ?? = 1.2. Calculate the appropriate test statistic, p-value and give a general conclusion of reject or fail to reject the null hypothesis based on the significance level.

c. (1 points) What is the same and what is different between the results in (a) and (b)? Why? Be specific.

Math   Statistics-And-Probability   
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