EXAMPLE 12 Calculating and interpreting the adjusted coefficient of determination

For the multiple regression in Example 11, we have and .

  1. Calculate the multiple coefficient of determination for .
  2. There are observations. Compute and interpret the adjusted coefficient of determination .

Solution

746

Therefore, the multiple regression equation accounts for 81.2% of the variability in nutritional rating.

NOW YOU CAN DO

Exercises 17–20.