Question: Do a complete regression analysis by performing these steps.

a. Draw a scatter plot

b. Compute the correlation coefficient

c. Test the hypotheses at a = 0.01. Use Table I.

d. Determine the regression line equation.

e. Plot the regression line on the scatter plot.

f. Predict y’ for a specific value of x.

A researcher wishes to determine if there is a relationship between the number of day-care centers and the number of group day-care homes for counties in Pennsylvania. If there is a significant relationship, predict the number of group day-care homes a county has if the county has 20 day-care centers.

Day-care centers x | 5 28 37 16 16 48

Group day-care homes y| 2 7 4 10 6 9