DATA:

Age (in years) 39 39 45 50 39 41 46 35 34 42

Peak Heart Rates (y) 190 180 190 194 192 184 174 179 174 187

I.At the 5% level of significance, do the data provide sufficient evidence to conclude that age is useful as a predictor of peak heart rate?

II.Find 95% confidence interval for the population regression coefficient of the linear regression equation relating age and peak heart rate.

III. At 1% level of significance do the data provide sufficient evidence to conclude that age and peak heart rate are linearly related