The website is sensitive to decimals, sometimes it’s difficult to access what th
ID: 3320489 • Letter: T
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The website is sensitive to decimals, sometimes it’s difficult to access what the answer is so plz show the entire process and define variables.
The local utility company surveys 16 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 appears below: Bill 17.05 + 3.73 *Size Coefficients Estimate |Std. Error Intercept) 17.050.76 Size 3.73 0.75 We are 95% confident that the mean annual electric bill increases by between Previewdollars and Previewdollars for every additional square foot in home size.Explanation / Answer
her for 95% CI an (n-2=14) degree of freedom critical value of t =2.1448
therefore 95% CI of slope =estimated slope -/+ t*Std error =3.73 -/+ 2.1448*0.75 =2.1414 ; 5.3586
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