Question: b. Obtain a linear regression line for the data. (Round your intermediate calculations and final answers to 3 decimal places.) y= c. What percentage of

b. Obtain a linear regression line for the data.

b. Obtain a linear regression line for the data.(Round your intermediate calculations and final answers to 3 decimal places.) y=

c. What percentage of the variation is explained by the regression line? (Do not round intermediate calculations. Round your answer to the nearest whole percent. Omit the "%" sign in your response.)

d. Use the equation determined in part b to predict the expected value of y for x = 49. (Round your intermediate calculations and final answers to 3 decimal places.)

Problem 3-26 The following data were collected during a study of consumer buying patterns: 15 28 38 70 79 89 Observation 1 2 3 4 5 6 7 Observation 8 9 10 11 12 13 14 16 14 24 21 29 y 82 70 68 84 83 91 35 49 42 30 86 97 97 82

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