A Random Sample of Size 15 Is Selected from a Normal

question 108

Multiple Choice

A random sample of size 15 is selected from a normal population. The population standard deviation
Is unknown. Assume that a two-tailed test at the 0.10 significance level is to be used. For what value
Of t will the null hypothesis 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) To the left of -1.761 or to the right of 1.761
• D) To the left of -1.645 or to the right of 1.645