Question

A telemarketing firm has studied the effects of two factors on the response to its television advertisements. The first factor is the time of day at which the ad is run, while the second is the position of the ad within the hour. The data in the following table, which were obtained by using a completely randomized experimental design, give the number of calls placed to an 800 number following a sample broadcast of the advertisement. If we use Excel to analyze these data, we obtain the output in the table below. The Telemarketing Data and the Excel Output of a Two-Way ANOVA Position of Advertisement Time of Day On the Hour On the Half - Hour Early in Program Late in Program 10:00 morning 60 4:00 afternoon 9:00 evening SB 105 93 129 103 123 103 105 125 105

Answer 1

(b) reject

(c) reject

(d)

MSE	12.417
q	3.532
	d	LL	UL
M-A	-18.17	-22.57	-13.77
M-E	-59.67	-64.07	-55.27
A-E	-41.5	-45.90	-37.10

(e)

MSE	12.417
q	3.901
	d	LL	UL
1-2	1.67	-2.91	6.25
1-3	-24	-28.58	-19.42
1-4	-4.77	-9.35	-0.19
2-3	-25.67	-30.25	-21.09
2-4	-6.44	-11.02	-1.86
3-4	19.23	14.65	23.81

(f)

Evening/Early
LL	UL
121.47	129.87