BIG DATA AND MACHINE LEARNING Economics, ASAP = upvote. Homework Question.

We are doing model selection using 5-fold cross-validation. Consider model A. That model resulted in the following test mean-squared errors on each one of the 5 folds: Fold TMSE 1 22.64 2 21.81 3 23.66 4 22.58 5 21.61 What is the 5-fold cross-validation test mean squared error for model A