Q3
A researcher is interested in determining if age predicts weight or not.
The table to the right indicate the age and weights of the people (14) in the sample.
a) Run simple regression analysis using Excel.
Note: use 95% confidence level.
b) Is age a significant determinant of weight? Explain.
c) What is amount of variation in weight that is explained by age? Explain.
d) What is the expected weight of a person who is 56 years old?
Age	Weight
54	65
62	92
80	82
25	74
28	76
29	71
62	79
64	85
47	82
49	62
52	64
35	54
36	73
91	83