The MINITAB results are shown for predicting selling price using x1 = size of home, x2 = number of bedrooms, and x3 = age.
Regression of selling price on house size, number of bedrooms, and age

a. State the null hypothesis for an F test, in the context of these variables.
b. The F statistic equals 74.23, with P -value = 0.000. Interpret.
c. Explain in nontechnical terms what you learn from the results of the t tests reported in the table for the three explanatory variables.

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The regression equation is HP in thousands 80.5 +0.0626 House Size 13.5 Bedrooms -0.418 Age Predictor Constant 80.49 House Size 0.062646 0.004732 13.24 0.000 Bedrooms 13.543 Age Coef SE Coef 21.81 3.69 0.000 5. 380 0.2359 2.52 0.013 -1.77 0.078 -0.4177