The Prescott Film Studio Regression Case Study

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The Prescott Film Studio Regression Case Study1.Figure 1 contains theone variable summary for all 10 films in the four categories of revenue orexpenses.Figure 1.The mean and median of the totalbox office receipts are significantly differ. Standard deviationis33.79, range is 105.10 and interquartile range is 41.53.The mean and median of theproduction costs are significantly differ. Standard deviation is 3.89,range is 12.00 and interquartile range is 4.55.The mean and median of the totalpromotional costs are approximately the same. Standarddeviation is 2.48, range is 7.20 and interquartile range is 7.15.The mean and median of the totalbook sales are approximately the same.Standard deviation is5.17, range is 17.30 and interquartile range is 5.40.The standard deviation, range and interquartile ranges for all the variables indicated that therevariation among the four variables is considerably low, when compared with their means.Total Box Office Receiptsfor First Year (in millions)Total Production Costs forthis movie (in millions)Total Promotional Costsfor this movie (in millions)Total Book Sales(in millions)count10101010mean85.248.744.909.92sample variance1141.5215.106.1526.76sample standard deviation33.793.892.485.17minimum30.303.101.203.50maximum135.4015.108.4020.80range105.1012.007.2017.301st quartile60.956.023.106.40median87.209.104.809.253rd quartile102.4810.577.1511.80interquartile range41.534.554.055.40

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2.Figure 2 containsa single histogram on all four of these data.Figure 2.(a)These histograms indicated that the distributions ofTotal Box Office ReceiptsandTotalProduction Costsare not normal, the distributionsofTotalPromotional CostsandTotalBook Salesareapproximately normal.(b)The values ofR2for the variablesTotal Box Office Receipts,Total Production Costs,andTotal Promotional Costsindicated that explanatory power of those histograms is verysmall. For the variableTotal Book Salesthe value ofR2is considerable large, so it has moreexplanatory power.

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