Question

The data show the number of viewers for beint with cortan sabanes Find the regression equation ng Find the best predicted number of viewers for a l on s halary of 56 milion is the results Viewer millions Click the icon to www the real values of the Pearson correlation coefficient What is the regression equation? . Round to the decinal places needed What is the best predicted number of es for a lesions with a salary of 56 milio The best predicted to wers for a star with a salary of 56 milioni Round to one decimal place as needed) is the result close to the cha m ber of viewers, 29 OA. The result is very close to the a l bero et milion OB There is not very close to the actual under of tot 20 min Oc. The y the same as the camber of owers of 29 OD The resudoes not make sense given the cold the date

Answer 1

19- 3.5 6.8 Ž-NOU 6.3 10.2 8.5 (x-x)" 6123.0625 162.5625 45.5625 60.0625 280.5625 45.5625 95.0625 315.0625 7127.5000 SSX 4.10 163 0.60 21.86 8.85 1.27 13.88 7.98 60.16 SSY (x-x)(y-7) -158.4563 -16.2563 -5.2313 -36.2313 -49.8313 7.5937 36.3188 50.1438 -171.9500 SXY 4.4 18 27 44.2 5.53 2 158 19.750 Total Mean sample size: n= here y 5.5250 19.7500 Sxx :(84-8) = Sky 'E(X-XIY-) slopes S.,IS- intercept y-B2= Least square line equation: y =6.001+-0.024' 7127.500 -171.950 -0.024 6.001

b)

correlation coefficient r=

Sxy/(√Sxx*Syy) =

-0.2626

since correlation is not higher than critical value from the table ; we can not use regression line for prediction

best predicted value =5.5

option B is correcT: not very close