Classroom Exercise: A randomly chosen sample of 20 families in Camella Homes, Lapu-lapu City, Cebu revealed the following figures for family size and the amount spent on food per week. Family Size Amount Spent on Food (Php) Family Size Amount Spent on Food (Php) 3 4,158.00 5 6,215.00 6 4,368.00 3 3,254.00 8 6,342.00 9 8,652.00 10 9,870.00 10 9,879.00 5 6,357.00 11 11,254.00 4 5,123.00 10 10,520.00 6 5,621.00 9 9,867.00 11 10,502.00 8 7,012.00 4 6,432.00 3 4,132.00 5 6,245.00 6 5,364.00 a) Compute the coefficient of correlation. b) Calculate the coefficient of determination. Do larger families spend more on food? Is family size a predictor of weekly food family expenditure? Evaluate at a = 0.05