The local utility company surveys 12 randomly selected customers. For each survey participant, the company collects the following: annual electric bill (in dollars) and home size (in square feet). Output from a regression analysis is as follows: bill = 16.2 +3.58. size. Coefficients Estimate Std. Error (Intercept) Size 16.2 3.58 0.47 0.68 Round your answer to three decimal places, and round any interim calculations to four decimal places. We are 99% confident that the mean annual electric bill increases by between dollars for every additional square foot in home size. dollars and

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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The local utility company surveys 12 randomly selected customers. For each survey participant, the
company collects the following: annual electric bill (in dollars) and home size (in square feet). Output from
a regression analysis is as follows: bill = 16.2 + 3.58. size.
Coefficients Estimate Std. Error
(Intercept) 16.2
Size
3.58
0.47
0.68
Round your answer to three decimal places, and round any interim calculations to four decimal places.
We are 99% confident that the mean annual electric bill increases by between
dollars for every additional square foot in home size.
dollars and
Transcribed Image Text:The local utility company surveys 12 randomly selected customers. For each survey participant, the company collects the following: annual electric bill (in dollars) and home size (in square feet). Output from a regression analysis is as follows: bill = 16.2 + 3.58. size. Coefficients Estimate Std. Error (Intercept) 16.2 Size 3.58 0.47 0.68 Round your answer to three decimal places, and round any interim calculations to four decimal places. We are 99% confident that the mean annual electric bill increases by between dollars for every additional square foot in home size. dollars and
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