Question
Consider the following hypotheses: H 0 : ? ? 18.9 H A : ? > 18.9 A sample of 56 observations yields a sample mean
Consider the following hypotheses: |
H0: ? ? 18.9 |
HA: ? > 18.9 |
A sample of 56 observations yields a sample mean of 20.1. Assume that the sample is drawn from a normal population with a known population standard deviation of 6. Use Table 1. |
a. | Calculate the p-value. (Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to 4 decimal places.) |
p-value |
b. | What is the conclusion if ? = 0.02? | ||||
|
c. | Calculate the p-value if the above sample mean was based on a sample of 133 observations. (Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to 4 decimal places.) |
p-value |
d. | What is the conclusion if ? = 0.02? | ||||||
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