The Following Summary Is from Home Heating Costs, Using Mean

question 72

Multiple Choice

The following summary is from home heating costs, using mean outside temperature as X₁ the number of centimetres 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.

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