The following summary is from home heating costs, using mean outside temperature as X₁ the number of centimeters of insulation as X₂, and the presence of a garage as X₃. Is the presence of the independent variable garage significant in predicting heating costs, when tested at the 0.05 level of significance? A) Since the p-value is less than the level of significance, the null hypothesis is rejected, and so the garage should be included in the analysis. B) Since the p-value is less than the level of significance, the null hypothesis is accepted, and so the garage should not be included in the analysis. C) Since the p-value is more than the level of significance, the null hypothesis is accepted, and so the garage should not be included in the analysis. D) Since the p-value is more than the level of significance, the null hypothesis is rejected, and so the garage should be included in the analysis.

Question

Quizplus · Accepted Answer

A p-value less than the level of significance indicates that the null hypothesis should be rejected. In this case, the null hypothesis is that the presence of a garage does not have a significant effect on home heating costs. Therefore, since the p-value is less than the level of significance, the garage should be included in the analysis.

The Following Summary Is from Home Heating Costs, Using Mean