Using questions 11, state the value of the test statistic and p-value.

Using question 22, state the decision (reject the null & conclude the alternative, or do not reject the null) at the alpha level of 0.05. Be sure to state WHY.

Using question 17, has the requirements for this test been satisfied? Explain.

Researchers are interested in the effect of distractions on work efficiency. Forty college students volunteered to be part of an experiment in which half were randomly assigned to a quiet room and the other half to a room in which loud music was playing. The students were asked to complete an easy Sudoku puzzle and their completion times were recorded. A 95% confidence interval for the difference between mean completion times for the puzzle (music – no music) was found to be (5, 11) minutes. Could this information be used to conclude that we should reject a null hypothesis of no difference in the average completion time between these two groups at a significance level of 0.05?

Using question 11, has the requirements for the test been satisfied? Explain.

Using question 22, has the requirements for this test been satisfied? Explain.

Using question 37, which error is more problematic for the restaurant owner? Why?

Using question 28, state the decision (reject the null & conclude the alternative, or do not reject the null) at the alpha level of 0.05. Be sure to state WHY.

Using question 17, state the decision (reject the null & conclude the alternative, or do not reject the null) at the alpha level of 0.05. Be sure to state WHY.

Using question 37, which error is more problematic for the diners? Why?