The manager of an automobile dealership is considering a new

The manager of an automobile dealership is considering a new bonus plan designed to increase sales volume. Currently, the mean sales volume is 28 automobiles per month. The manager wants to conduct a research study to see whether the new bonus plan increases sales volume. To collect data on the plan, a sample of sales personnel will be allowed to sell under the new bonus plan for a one-month period.

a. Which form of the null and alternative hypotheses most appropriate for this situation.

H0: is Selectgreater than or equal to 28greater than 28less than or equal to 28less than 28equal to 28not equal to 28Item 1

Ha: is Selectgreater than or equal to 28greater than 28less than or equal to 28less than 28equal to 28not equal to 28Item 2

b. Comment on the conclusion when H0 cannot be rejected.

SelectNo evidence that the new plan increases sales.The research hypothesis > 28 is supported; the new plan increases sales.Item 3

c. Comment on the conclusion when H0 can be rejected.

Solution

a. Which form of the null and alternative hypotheses most appropriate for this situation.

H0:  is greater than or equal to 28

Ha:  is   less than 28

b. Comment on the conclusion when H0 cannot be rejected.

The research hypothesis > 28 is supported