A researcher wants to investigate the relationship between the hours a student spends studying fora test and the score on the test. The following data is gathered:Hours (x)2016342327321822Score (y)6.58.579.57.58Annual (X-X)salary,$1000Years of(Y-Y)(X-X)(Y-Ÿ)(X-X)?(Y-7)²schooling206.5-4-1.25161.5625166.-8-1.7514643.0625348.5100.757.51000.5625237-1-0.750.7510.56252731.253.759.1.5625329.58.1.7514643.0625187.5-6-0.251.5360.0625228-20.25-0.540.0625192624629410.5Calculate:a. The regression line of y based on x.b. The estimated test score for a person who studied 28 hours.

The given data represents that the number of hours a student spends studying for a test and the…

A researcher wants to investigate the relationship between the hours a student spends studying for a test and the score on the test. The following data is gathered: Hours (x) 20 16 34 23 27 32 18 22 Score (y) 6.5 8.5 7 9.5 7.5 (X-X)(Y-F) | (x-X)? Annual (X-X) salary, $1000 Years of (Y-Ÿ) (Y-F)² schooling 20 6.5 -4 -1.25 5 16 1.5625 16 6. -8 -1.75 14 64 3.0625 34 8.5 10 0.75 7.5 100 0.5625 23 7 -1 -0.75 0.75 1 0.5625 27 9 3 1.25 3.75 9. 1.5625 32 9.5 8. 1.75 14 64 3.0625 7.5 -6 -0.25 1.5 36 0.0625 22 8 -2 0.25 -0.5 4 0.0625 192 62 46 294 10.5 Calculate: a. The regression line of y based on x. b. The estimated test score for a person who studied 28 hours. m NN 0