An owner of a home in the Midwest installed solar panels to reduce heating costs

Question

An owner of a home in the Midwest installed solar panels to reduce heating costs. After installing the solar panels, he measured the amount of natural gas used y (in cubic feet) to heat the home and outside temperature x (in degree days, where a day's degree-days are the number of degrees its average temperature falls below 65 degrees F) over a 23-month period. By looking at the equation of the least-squares regression line ( = 85 + 16x), you can see that the correlation between amount of gas used and degree-days is

An owner of a home in the Midwest installed solar panels to reduce heating costs. After installing the solar panels, he measured the amount of natural gas used y (in cubic feet) to heat the home and outside temperature x (in degree days, where a day's degree-days are the number of degrees its average temperature falls below 65 degrees F) over a 23-month period. By looking at the equation of the least-squares regression line ( = 85 + 16x), you can see that the correlation between amount of gas used and degree-days is

Explanation / Answer

as we can see from abvoe equation that slope of the regression equation is positive ; therefore correlation is positive

option B is corect

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.