Course Solutions Uncategorized (Solved) : Data Books Million Number Pages 160 272 416 352 448 288 448 208 496 160 Cost Book 1257 23 Q33200917 . . . .

(Solved) : Data Books Million Number Pages 160 272 416 352 448 288 448 208 496 160 Cost Book 1257 23 Q33200917 . . . .

 

Data from Books A Million Number of Pages 160 272 416 352 448 288 448 208 496 160 a. Cost of book $12.57 $23.52 $15.99 $19.32 $14.94 $16.26 $14.55 $12.59 $26.99 $17.00 Number of pages- independent variable x Cost of book- dependent variable y c. a- 143.86 10.42 143.86 +10.42 x r0.389 p-value- 0.2656 linear regression a.0145 b- 12.638 r2 .1517 r.3895 1. 2. 3. using the p-value, is the correlation significant? Why or why not? Does the line seem to fit the data? Why? what does the correlation imply about the relationship between the number of pages and the cost of the book? 4 using the linear eqúation in part c, what will be the cost of the book when the book has so pages? s. what will be the cost of the book when the book has 120 pages?Data

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