ABThe managers of a brokerage firm are interested in finding out if the number of new clients abroker brings into the firm affects the sales generated by the broker. They sample 12 brokers anddetermine the number of new clients they have enrolled in the last year and their sales amounts inthousands of dollars. These data are partially presented in the table with the following results:SST=1564.2, SSR=1227, E(X₁-X)² = 979.7 and Ŷ = 17.7+ 1.12X.DBroker Clients (X) Sales (Y)12:122711:22The 95% confidence interval estimate for the slope is0.471 to 1.9320.856 to 1.6360.532 to 1.708:0.707 to 1.533523738......to.....

SST=1564.2SSR=1227Regression equation is Sample size

Answered: The managers of a brokerage firm are…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Use the figure to the right, which shows the percentages of adults from several countries who favor building new nuclear power plants in their country. The survey included random samples of 1051 adults from Country A, 1120 adults from Country B, 1048 adults from Country C, and 1013 adults from Country D. At a =0.05, can you support the claim that the proportion of adults in Country B who favor building new nuclear power plants in their country is different from the proportion of adults from Country C who favor building new nuclear power plants in their country? Assume the random samples are independent. 100- 80- 60 40 20- 0- I Country A 53% I Country B 47% O Country C 46% O Country D 34% Identify the claim and state Ho and Ha. The claim is "the proportion of adults in Country B who favor building new nuclear power plants in their country is the same as the proportion of adults from Country C who favor building new nuclear power plants in their country." greater than less than different…
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