The Following Summary Is from Home Heating Costs, Using Mean

question 71

Multiple Choice

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.

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Definitions:

Zeitgebers

Environmental cues like light and temperature that regulate the biological clock of organisms, influencing sleep and wakefulness cycles.

Sunrise

The time of day when the upper limb of the Sun appears on the horizon in the morning.

Sunset

The time in the evening when the sun disappears below the horizon, marking the transition from day to night.

Suprachiasmatic Nucleus

is a small region of the brain located in the hypothalamus that acts as the primary circadian clock, regulating sleep-wake cycles and other circadian rhythms.