Use the Regression tool on the accompanying wedding data, using the wedding cost as the dependent variable and attendance as the independent variable. Complete parts a through c.

Wedding Cost Attendance 58700 300 54000 350 46000 150 42000 200 35000 250 32000 150 31500 250 30000 300 30000 250 27000 200 26000 150 25000 200 22000 200 22000 200 21000 200 21000 200 21000 100 21000 150 18000 200 17000 150 17000 100 16000 100 12000 150 6000 50 6000 50 a. What is the regression model? Wedding Cost =+Attendance (Round to three decimal places as needed.) b. Interpret all key regression results, hypothesis tests, and confidence intervals in the regression output from part a. Interpret the slope of the regression equation. Choose the correct answer below. O A. It is not appropriate to interpret the slope because it is outside the range of observed wedding costs, B. The slope indicates that for each increase of 1 in attendance, the predicted wedding cost is estimated to increase by a value equal to bq. C. The slope indicates that for each increase of 1 in wedding cost, the predicted attendance is estimated to increase by a value equal to b. D. It is not appropriate to interpret the slope because it is outside the range of observed attendances Interpret the Y-intercept of the regression equation. Choose the correct answer below. A. The Y-intercept indicates that a wedding with a cost of $0 has a mean predicted attendance of by people. B. It is not appropriate to interpret the Y-intercept because it is outside the range of observed attendances. C. The Y-intercept indicates that a wedding with an attendance of 0 people has a mean predicted cost of $bo D. It is not appropriate to interpret the Y-intercept because it is outside the range of observed wedding costs. Identify and interpret the meaning of the coefficient of determination in this problem. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. The coefficient of determination is R This value is the proportion of variation in wedding cost that is explained by the variation in attendance. The coefficient of determination is R This value is the probability that the slope of the regression line is statistically significant B. (Round to three decimal places as needed.) O A. The coefficient of determination is R2 = This value is the proportion of variation in wedding cost that is explained by the variation in attendance. OB. The coefficient of determination is R2 = . This value is the probability that the slope of the regression line is statistically significant. OC. The coefficient of determination is R2 = This value is the probability that the correlation between the variables is statistically significant. The coefficient of determination is R = . This value is the proportion of variation in attendance that is explained by the variation in wedding cost. c. If a couple is planning a wedding for 125 guests, how much should they budget? They should budget $ (Round to the nearest dollar as needed.)