Observed and predicted values of a variable y based on a sample of size n=9 and a forecasting model are given below. compute sample mean, sample variance for y. compute mse and mad for residuals. y 10.2 15 16.1 15.3 17 18.3 19.4 20.1 24 y 79.5 15.5 15 16 17.7 18 20 22 21

Step-by-step explanation:

The sample mean for a finite set of values is given by:

The standard deviation for a finite set of values is given by:

The MAD for a set of predicted values is given by:

The MSE for a set of predicted values is given by:

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