Question: What is the relationship between the amount spent per week on food and the size of the family? Do larger families spend more on food? A sample of 10 families in the Chicago area revealed the following figures for family size and the amount spent on food per week.

a. Compute the coefficient of correlation.

b. Determine the coefficient of determination.

c. Can we conclude that there is a positive association between the amount spent on food and

the family size? Use the .05 significance level.