1 Which of the following is not one of the steps for hypothe

1. Which of the following is not one of the steps for hypothesis testing?

A. Determine the null and alternative hypotheses.

B. Verify data conditions and calculate a test statistic.

C. Assuming the null hypothesis is true, find the p-value.

D. Assuming the alternative hypothesis is true, find the p-value.

2. The p-value for a one-sided test for a mean was 0.06. The p-value for the corresponding two-sided test would be:

A. 0.12

B. 0.04

C. 0.06

D. 0.08

3. Which statement is incorrect?

A. The null hypothesis contains the equality sign.

B. When a false null hypothesis is not rejected, a Type II error has occurred.

C. If the null hypothesis is rejected, it is concluded that the alternative hypothesis is true.

D. If we fail to reject the null hypothesis, then it is proven that null hypothesis is true.

4. The null and alternative hypotheses divide all possibilities into:

          A. Two sets that overlap

B. Two non-overlapping sets

C. Two sets that may or may not overlap

D. As many sets as necessary to cover all possibilities

   5. When testing for the equality of two population means, using = 0.05 with n₁ = 12 and n₂ = 10, from independent samples, so long as the population variances can be assumed equal, the critical values for t are:

          A) +2.704 and -2.704

          B) +1.96 and -1.96

          C) +2.086 and -2.086

          D) +1.645 and -1.645

          E) None of the above

Solution