Assignment:
An experiment was carried out to assess the impact of the variables x1 = force(gm), X2 = power (mW), x3 = temperature (C) and x4 = time (msec) on y = ball bond shear strength (gm). The results are given in the problem 5 Excel data file.
a. Perform a complete analysis.
b. Perform a complete residual analysis.
c. Check for collinearity problems.
|
observation
|
Force
|
Power
|
Temp
|
Time
|
Strength
|
|
1
|
30
|
60
|
175
|
15
|
26.2
|
|
2
|
40
|
60
|
175
|
15
|
26.3
|
|
3
|
30
|
90
|
175
|
15
|
39.8
|
|
4
|
40
|
90
|
175
|
15
|
39.7
|
|
5
|
30
|
60
|
225
|
15
|
38.6
|
|
6
|
40
|
60
|
225
|
15
|
35.5
|
|
7
|
30
|
90
|
225
|
15
|
48.8
|
|
8
|
40
|
90
|
225
|
15
|
37.8
|
|
9
|
30
|
60
|
175
|
25
|
26.6
|
|
10
|
40
|
60
|
175
|
25
|
23.4
|
|
11
|
30
|
90
|
175
|
25
|
38.6
|
|
12
|
40
|
90
|
175
|
25
|
52.1
|
|
13
|
30
|
60
|
225
|
25
|
39.5
|
|
14
|
40
|
60
|
225
|
25
|
32.3
|
|
15
|
30
|
90
|
225
|
25
|
43
|
|
16
|
40
|
90
|
225
|
25
|
56
|
|
17
|
25
|
75
|
200
|
20
|
35.2
|
|
18
|
45
|
75
|
200
|
20
|
46.9
|
|
19
|
35
|
45
|
200
|
20
|
22.7
|
|
20
|
35
|
105
|
200
|
20
|
58.7
|
|
21
|
35
|
75
|
150
|
20
|
34.5
|
|
22
|
35
|
75
|
150
|
20
|
44
|
|
23
|
35
|
75
|
250
|
10
|
35.7
|
|
24
|
35
|
75
|
200
|
30
|
41.8
|
|
25
|
35
|
75
|
200
|
20
|
36.5
|
|
26
|
35
|
75
|
200
|
20
|
37.6
|
|
27
|
35
|
75
|
200
|
20
|
40.3
|
|
28
|
35
|
75
|
200
|
20
|
46
|
|
29
|
35
|
75
|
200
|
20
|
27.8
|
|
30
|
35
|
75
|
200
|
20
|
40.3
|
Provide complete and step by step solution for the question and show calculations and use formulas.