For Exercises 15.1 to 15.3, see pages 15-6 to 15-7; for 15.4 to 15.6, see page 15-10; for 15.7, see pages 15-12 to 15-13; for 15.8 to 15.10, see page 15-15; for 15.11, see page 15-16; for 15.12 and 15.13, see page 15-18; and for 15.14 to 15.16, see pages 15-20 to 15-21.
15.3 Compare employee training programs.
A company wants to compare three different training programs for its new employees. Each of these programs takes four hours to complete. The training can be given for four hours on one day or for two hours on two consecutive days. The next 90 employees hired by the company will be the subjects for this study. After the training is completed, the employees are asked to evaluate the effectiveness of the program on a 7-point scale. Describe the two factors, and give the number of levels of each and the total number of observations.
15.3
Factors: Training program has 3 levels (the 3 different programs); Method, or how the program is administered, has 2 levels (one 4-hour session, or two 2-hour sessions). .