Solve the below:
Q: Use a stepwise regression procedure and the following data to develop a multiple regression model to predict y. Discuss the variables that enter at each step. Commenting on their t values and on the value of R2
|
Y
|
xi
|
xi
|
xi
|
Y
|
xi
|
xi
|
xi
|
|
21
|
5
|
108
|
57
|
22
|
13
|
105
|
51
|
|
17
|
11
|
135
|
34
|
20
|
10
|
111 |
43 |
|
14
|
14
|
113
|
21
|
16
|
20
|
140
|
20
|
|
13
|
9
|
160
|
25
|
13
|
19
|
150
|
14
|
|
19
|
16
|
122
|
43
|
18
|
14
|
126
|
29
|
|
15
|
18
|
142
|
40
|
12
|
21
|
175
|
22
|
|
24
|
7
|
93
|
52
|
23
|
6
|
98
|
38
|
|
17
|
9
|
128
|
38
|
18
|
15
|
129
|
40
|