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Question 2 Grawburg Inc. maintains a call center to take orders, answer questions, and handle complaints. The costs of the call center for a number
Question 2 Grawburg Inc. maintains a call center to take orders, answer questions, and handle complaints. The costs of the call center for a number of recent months are listed below: Call Center Cost Calls Taken April May June July August September October November 7560 $ 81,960 7529 $ 81,773 7570 $ 82,025 7568 $ 81,997 7535 $ 81,816 7549 $ 81,895 7592 $ 82,156 7579 $ 82,092 Management believes that the cost of the call center is a mixed cost that depends on the number of calls taken. The excel least squares regression output is as follows: SUMMARY OUTPUT ression Stotistics Multiple R R Square Adjusted R Square Standard Error Observations 0.998198 0.996399 0.995799 8.52932 ANOVA MS ricance F Regression Residual Total 1 120783 120783 1660.264 1.46E-08 6 436.4958 72.7493 7 121219.5 Coefficient n dard Err t Stat P-value Lower 95%U ) r95%over 95.0 r95.0% Intercept X Variable 1 35914.19 1130.169 31.777726.45E-08 33148.76 38679.61 33148.7638679.61 6.091077 0.149488 40.74633 1.46E-08 5.725293 6.45686 5.725293 6.45686
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