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The following computer printout estimated overhead costs using multiple regression: Parameter Intercept Setup hours Number of parts R Square (R) Standard Error (Se) Observations t for Ho Estimate Parameter = 0 1,000 1.282 25 81.96 100 1.036 Pr>t 0.1000 0.0001 0.1500 Standard Error of Parameter 510.204 0.305 10.527 0..60 75.00 160 During the year, the company used 1,000 setup hours and 500 parts. Which slope and intercept parameters are significant at the 0.05 level? O intercept setup hours O number of parts O All of these choices are correct. The following computer printout estimated overhead costs using regression: Parameter Intercept Estimate 14.05 100.41 t for Ho Parameter = 0 6.78 4.81 Pr>t 0.0001 Standard Error of Parameter 2.07 20.88 Dlh 0.0003 0.80 R Square (R2) Standard Error (Se) Observations 25.03 17 During the last accounting period 10,000 direct labor hours were worked. Which of the following is the correct model? Overhead = 100.41 + 14.05 Dlh ODlh = 4.81 + 6.78 Overhead Overhead = 4.81 + 6.78 Dlh O Overhead = 14.05 + 100.41 Dlh Information about the Hexon Company's two products is as follows: Product X $11.25 Product Y $11.25 Unit selling price Unit variable costs: Manufacturing Selling Total $ 5.25 $ 6.75 0.75 $ 6.00 0.75 $_7.50 Monthly fixed costs are as follows: Manufacturing Selling and administrative Total $ 82,500 45,000 $ 127,500 If the sales mix is 4 units of Product X for every 1 unit of Product Y, what is the monthly break-even total in sales dollars? (Round final answer to the nearest whole number.) O $318,746 O $289,773 O $354,167 O $127,500