The computer output for a multiple regression analysis including 15 observations and three predictor variables, x1, x2, and x3 provides the following information: Which, if any, of the independent variables
and
contribute information for the prediction of y?
Compute the t-statistic for each predictor variable and decide whether or not it is significant: = ______________,
______________ significant.
= ______________,
______________ significant.
= ______________,
______________ significant.
Give the least-squares prediction equation. = _______ + _______
+ _______
+ _______
.
What is the practical interpretation of the parameter ?
________________________________________________________
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