Based on the scatterplot and computer output, a reasonable estimate for the home's electric bill when
the mean monthly temperature is 76 degrees is:
A homeowner notices that the electric bill for the
house is often much higher in the summer months.
Collecting data from the last 18 monthly electric bills,
the amount of each bill is plotted against the mean
temperature for each month. The logs of both the
mean monthly temperature and the electric bill are
taken in order to develop a linear model.
HERE
O $145.30 because ý = 1.9313(76) - 1.4806 =
145.30
$8.60 because iny =1.9313(log 76) - 1.4806 =2.1518 and
e2.1518 = 8.60
log(Bill) vs. log(Temperature)
0 $141.85 because log y = 1.9313(log 76) - 1.4806 = 2.1518
2.3
and 102 1518 = 141.85.
2.25
22
0 $4,923.97 because log y = 1.9319(log 76) + 0.0599 =3.6923
2.15
and 103.6923 = 4923.97.
log(Bill)
21
205
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