The local utility company surveys 11 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 19.7+ 3.23*Size Coefficients Estimate Std. Error (Intercept) 19.7 Size 3.23 0.34 0.75 We are 99% confident that the mean annual electric bill increases by between dollars and dollars for every additional square foot in home size. Round your answers to three decimal places and enter in increasing order.

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