Submit Test 0:27 Question #25/ 25 A movie studio wishes to determine the relatio

Question

Submit Test 0:27 Question #25/ 25 A movie studio wishes to determine the relationship between the revenue from rental of DVDs and videotapes of comedies and the revenue generated from the theatrical release of such movies. The stu dio has the following bivariate data from a sample of fifteen comedies released over the past five years. These data give x from theatrical release (n millions of dollars) and the revenue y from DVD and videotape rentals (in millions of dollars) for each of the fifteen movies. The data are displayed in the Figure 1 scatter plot. Also given are the products of the values for theater revenue and values for rental revenue for each of the fifteen movies. (These products, written in the column labelled"xy," may aid in calculations.) Theater r in millions of dollars) inmillions of dollars) 9.9 16.5 2.0 10.7 11.4 5.5 10.0 67.1 48 5 664 29 800 25 13 6.5 61.3 28 5 31.6 13.0 25.7 324.9 1738 130 226.16 935.72 128 96 99.75 15.7 6 2 59.6 20 8 28 5 0 Type here t

Explanation / Answer

(b)

E(xy)=sum(xy)/n=

E(x)=34.21

E(y)=8.607

sd(x)=18.4733

sd(y)=4.3733

r=0.6329211

slop coefficient b=r*SDx/SDy

b=2.6734

b=

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