Problem 4: [6 pts.] Blood fat content may be influenced by many factors including age and weight. A nutritionist collected data on blood fat content, age and weight from sample of people. The data are saved in the file Assn1Q4.sav. The aim was to investigate how blood fat content is related to age and weight of individuals.
- [1 pt.]Check if the linearregression is appropriate to model the blood fat contentdepending on age and weight?
- [1 pt.] Give the estimatedegression equation of Blood fat on the age andthe weight.
- [1 pts.] Interpret the coefficientof age.
- [1 pts.] Test the validity of themodel given in (b).
- [1 pt.] Test (at 2% level) whetherthe effect of age is significant on the bloodfat.
- [1 pt.] Find the coefficient ofdetermination? Explain this value with respect to predictive powerof the estimated regression model.
Please mentioned the steps in SPSS.
| Weight | Age | Blood fat |
84.00
73.00
65.00
70.00
76.00
69.00
63.00
72.00
79.00
75.00
27.00
89.00
65.00
57.00
59.00
69.00
60.00
79.00
75.00
82.00
59.00
67.00
85.00
55.00
63.00 | 46
20
52
30
57
25
28
36
57
44
24
31
52
23
60
48
34
51
50
34
46
23
37
40
30 | 354.00
190.00
405.00
263.00
451.00
302.00
288.00
385.00
402.00
365.00
209.00
290.00
346.00
254.00
395.00
434.00
220.00
374.00
308.00
220.00
311.00
181.00
274.00
303.00
244.00 |
