Family expenses. A study would like to investigate the relationship between how much a family spends on recreation and its size. Here are data showing the family size and the amount spent on recreation per week for a sample of nine Canadian families.

a) Make a scatterplot for these data.

b) Do you think a linear model is appropriate? Explain.

c) Find the equation of the regression line.

d) Check the residuals to see if the conditions for inference are met.

Transcribed Image Text:

Family Size Expense per Week 3 C$100 6 C$120 5 C$145 5 C$151 4 C$130 6 C$140 3 C$110 4 C$120 . 5 C$160