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Hypothesis testing problems

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All of these questions are for my stat's class. I am having a really hard time understanding what needs to be done. I really want to learn what is going on.. I have double the amount of homework than the questions below. I went ahead and took one question from each section to get help with so I can see how to get the answers and see if I can work the similar question in my homework by myself. Any help would be greatly appreciated!

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Solution Summary

Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.

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See Also This Related BrainMass Solution

One and Two Tailed Tests: Hypothesis Testing Problem

Ho: u = 50
H1: u not = 50
The sample mean is 49, and the sample size is 36. the population standard deviation is 5. Use the .05 significance level.

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 Ho?
e. What is the p-value? Interpret it.

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