A Random Sample of Size 15 Is Selected from a Normal

question 58

Multiple Choice

A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected?

• A)To the left of −1.282 or to the right of 1.282
• B)To the left of −1.345 or to the right of 1.345
• C)Between −1.761 and 1.761
• D)To the left of −1.645 or to the right of 1.645

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