Refer to Exercise 11.68.
a. Predict the actual cubic- foot volume for a tree that the assistant estimates to have a cubic- foot volume of 13?
b. Place a 95% prediction interval on the actual cubic- foot volume for a tree that the assistant estimate to have a cubic- foot volume of 13.
In exercise

Transcribed Image Text:

Estimated volume 111 13.0 12.0 112 122 13.0 12.5 16.2 14.4 154 15.9 16.4 15.5 Actual volume 114 12.5 13.1 133 13.7 13.8 14.3 15.9 16.4 17.0 18.8 188 19.2 Estimated volume 169 176 158 16.4 187 189 19.7 19.7 210 19.0 21.5 21.3 Actual volume 19.7 19.8 19.8 20.1 20.1 20.9 224 22.7 23.1 233 24.0 248