A large corporation sent several of its prospective supervisors to a two-day seminar in identifying and increasing supervisory skills. Participants were given a pretest at the start of the seminar and a posttest at the conclusion. Their scores are listed below. At α = 0.05 can it be concluded that the training program was effective?

Perform these steps.
a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

Transcribed Image Text:

Employee Pretest Posttest 2 3 4 5 6 78 70 65 73 72 80 77 69 68 68 72 75 70 83 82 72 75