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Business, 17.12.2021 22:40 keving4three

The Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following: NUMBER OF ROOMSKILOWATT-HOURS
1216
910
1420
65
1011
87
1012
1014
78
916
a. Find X and Y. Find the regression equation. Calculate a and b.

b. Determine the number of kilowatt-hours, in thousands, for an 11-room house.

c. Find the coefficient of determination and interpret its meaning.

d. Find the coefficient of correlation and interpret its meaning.

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