Question

QUESTION 7 3)-7) The mangers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales in 1,000 $) generated by the broker. They sampled 25 brokers and determine the number of new clients they have enrolled in the last year and the data are partially presented in the table with the following results: y = 25.5+1.35X, SST-1430, SSR-1188.55, and --- 2)2-102. Broker Clients Sales 1 26 60 2 23 57 to 25 24 59 The 95% confidence interval estimate for the mean sales made by brokers who have brought into the firm 22 new clients. Using X-22.5 is 63.631 to 56.860 53.819 to 56.581 52.562 to 55.138 54.056 to 56.344

Answer 1

ANSIER:- (7) Given that n = 25 R = 95.5 B, : 1.35 MSE = 10.498 Syy - VMSE 10.498 = 3.24 SS gry 102 SS 29.5 X 22 poedicted value at X22: 56.2 Endor Standard sx + 80-8² Sxx E 0.6676 90% confidence interval Of ti 1.7140 Margin of error E - Ex Std error =1.7140 X 0.6676 1.1442 tal = 550200000a. 55. 20001 1.442 54.056, 56.344) option cd) is correct · - Th you please give like it helps to motivate me to do more wosk portend Thanking you