Question: Suppose that a multiple regression data set consists of n = 15 observations. For what values of k, the number of model predictors, would the

Suppose that a multiple regression data set consists of n = 15 observations. For what values of k, the number of model predictors, would the corresponding model with R2 = .90 be judged useful at significance level .05? Does such a large R2 value necessarily imply a useful model? Explain.

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