Question

8.19. Refer to Copier maintenance Problems 1.20 and 8.15. a. Fit regression model (8.49) and state the estimated regression function. b. Test whether the interaction term can be dropped from the model; control the alpha risk at .10. State the alternatives, decision rule, and conclusion. What is the P-value of the test? If the interaction term cannot be dropped from the model, describe the nature of the interaction effect. Data from: http://users.stat.ufl.edu/~rrandles/sta4210/Rclassnotes/data/textdatasets/Chapter%20%201%20Data%20Sets.html 1.20 Data 20 2 60 4 46 3 41 2 12 1 137 10 68 5 89 5 4 1 32 2 144 9 156 10 93 6 36 3 72 4 100 8 105 7 131 8 127 10 57 4 66 5 101 7 109 7 74 5 134 9 112 7 18 2 73 5 111 7 96 6 123 8 90 5 20 2 28 2 3 1 57 4 86 5 132 9 112 7 27 1 131 9 34 2 27 2 61 4 77 5 8.15 Data 1 0 0 0 0 0 1 1 1 1 1 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 1 1 1 0 1 1 0 0 0 0 1 1 0 0 0

          8.19. Refer to Copier maintenance Problems 1.20 and 8.15.
a. Fit regression model (8.49) and state the estimated
regression function.
b. Test whether the interaction term can be dropped from the
model; control the alpha risk at .10. State the alternatives,
decision rule, and conclusion. What is the P-value of the test? If
the interaction term cannot be dropped from the model, describe the
nature of the interaction effect.

Data from: http://users.stat.ufl.edu/~rrandles/sta4210/Rclassnotes/data/textdatasets/Chapter%20%201%20Data%20Sets.html 
1.20 Data
20     2
60     4
46     3
41     2
12     1
137    10
68     5
89     5
4     1
32     2
144     9
156    10
93     6
36     3
72     4
100     8
105     7
131     8
127    10
57     4
66     5
101     7
109     7
74     5
134     9
112     7
18     2
73     5
111     7
96     6
123     8
90     5
20     2
28     2
3     1
57     4
86     5
132     9
112     7
27     1
131     9
34     2
27     2
61     4
77     5
8.15 Data
1
0
0
0
0
0
1
1
1
1
1
0
0
0
1
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
1
1
1
0
1
1
0
0
0
0
1
1
0
0
0

Added by Montserrat A.

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