A regression was run using 12 subjects to determine if there

A regression was run using 12 subjects to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y). The results of the regression were: Regression Equation .. y= b_0 + b_1 x Slope .. b_1= - 0.95 y-Intercept .. b_0 = 38.163 Sample size .. n = 12 Correlation Coefficient r = -0.974 Use this to predict the number of situps a person who watches 14 hours of TV can do (to one decimal place)

Solution

Here,

y = 38.163 - 0.95x

Then if x = 14, then

y = 38.163 - 0.95*14 = 24.863 = 24.9 [ANSWER]