The following data were collected on 15 obese girls:

Weight in Kilograms

(Y)

Lean Body Weight

(X1)

Mean Daily Caloric Intake

(X2)

79.2 54.3 2670 64.0 44.3 820 67.0 47.8 1210 78.4 53.9 2678 66.0 47.5 1205 63.0 43.0 815 65.9 47.1 1200 63.1 44.0 1180 73.2 44.1 1850 66.5 48.3 1260 61.9 43.5 1170 72.5 43.3 1852 101.1 66.4 1790 66.2 47.5 1250 99.9 66.1 1789 Total 1087.9 741.1 22739

(a) Find the multiple correlation coefficient and test it for significance.

(b) Find each of the partial correlation coefficients and test each for significance. Let a ¼ :05 for all tests.

(c) Determine the p value for each test.

(d) State your conclusions.