Question: Test the following hypotheses and interpret your results. Show all work, including formulas.

a. Hypothesis: Mean: = 6.5.

From the sample findings:

Mean: 8.2. Standard Deviation: 3.3, n: 820

Confidence Level: 95%

What do you conclude?

--What do you conclude?

b. Hypothesis: Percent: = 74%

From the sample findings: p = 90, Standard Deviation: unknown n = 950

Confidence Level: 99%

--What do you conclude?

c. Hypothesis: Mean = 110

From the sample findings: Mean: 110, Standard Deviation =12, n= 400

Confidence Level: 95%

--What do you conclude?