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s 110 are related to the following data Next 10 questions are based on the following data relating cases sold (millions) of the brand of
s 110 are related to the following data Next 10 questions are based on the following data relating cases sold (millions) of the brand of soft drink to media expenditure ($millions). Case Media Sales Expend. Use the following calculations in the relevant formulas to answer the questions 980 65 n = 7 xy = 153,310 960 46 x = 32 x = 9,198 y = 520 (x x) = 2,030 (y y) = 773,450 (y y) = 105,248.57 180 18 115 10 1 A B C D The numerator of the slope coefficient formula for the estimated regression equation is: 36,830 37,930 39,030 40,130 A B C D The vertical intercept of the estimated regression equation is 70.24 60.57 40.65 60.88 A B C D The estimated regression equation predicts that for each additional $1 million in media expenditure, the case sales would increase by ______ million. 9.62 12.85 14.69 18.14 A B C D The prediction error of case sales for media expenditure of $18 million is. 86 98 86 98 A B C D On average, the predicted case sales deviate from the observed case sales by, 126.5 135.2 145.1 158.3 2 3 4 5 6 The sum of squared explained deviations is, A B C D 680,322.9 668,201.4 652,080.0 635,958.6 A B C D The sample data provides that ______ fraction of variations in case sales is explained by media expenditure. 0.9571 0.9262 0.8639 0.8241 A B C D To standard error of the slope coefficient, se(b), is 1.26 1.99 2.89 3.22 A B C D The margin of error for a 95% confidence interval for the population slope parameter is, 6.28 7.28 8.28 9.28 7 8 9 10 To perform a test of hypothesis that the population slope parameter is zero, the test statistic t is A 6.52 B 5.63 C 4.68 D 3.89 Use the following Excel regression output to answer the next 5 questions. The output shows the result of running a regression relating costs to production volume. Fill in the highlighted cells first. SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations ANOVA Regression Residual Total df 6 SS 1 5 MS 184775.04 7579083 Coefficients Std Error Intercept 617.662 428.31 PRODVAL 8.755 F Signif F 160.07159 2.25E04 t Stat 1.442 Pvalue Lower 95%Upper 95% 0.2227 571.51 1806.84 0.0002 11 The fraction of the variations in cost explained by production volume is: A 0.9756 B 0.9345 C 0.9038 D 0.8774 12 The predicted total cost when production volume is 1,000 is, A 8,581 B 8,827 C 9,070 D 9,373 13 A B C D Given that the sum of the squared deviations of production volume is 96,470.83, the standard error of the slope coefficient is 1.076 0.884 0.692 0.488 14 We are 95% confident that the population slope parameter is between, A 5.16 9.00 B 6.83 10.68 C 8.98 12.82 D 9.49 13.33 15 The value of the test statistic for H: = 0 is, A 5.21 B 7.69 C 10.17 D 12.65
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