Scottish Hill Climb races

We want to predict the record time for men in a Scottish Hill Climb race. There are two x variables to choose from, Distance and Climb. Here are the first few rows from the data table.

Race Men (mins) Women(mins) Distance(km) Climb (m)

Alva Games Hill Race 18.650 25.817 2.5 385

Aonach Mor Uphill Race 22.250 26.467 4.0 610

Arrochar Alps 187.650 249.433 25.0 2400

Choose the best single x variable to use to predict the record time for men with only Distance and Climb to choose from.

Coefficients for Distance

Term Coef SE Coef T-Value P-Value

Constant -6.92 2.41 -2.87 0.005

Distance(km) 5.806 0.178 32.57 0.000

Model Summary for Distance

S R-sq R-sq(adj) R-sq(pred)

12.9402 92.42% 92.33% 91.20%

Coefficients for Climb

Term Coef SE Coef T-Value P-Value

Constant 2.68 3.66 0.73 0.466

Climb (m) 0.08155 0.00434 18.81 0.000

Model Summary for Climb

S R-sq R-sq(adj) R-sq(pred)

20.8822 80.26% 80.03% 79.34%

CHOOSE ONE:

A) Best one is x2 = Climb

B) Best one is x1 = Distance