A bank wants to estimate the difference in the proportion of its "big" customers who have a second account with a different bank and the proportion of its "small" customers who also have an account with another bank. Of the 200 "big" customers randomly selected, 160 claimed to also bank with other banks. Of the 300 "small" customers randomly selected, 120 claimed to also bank with other banks. Construct a 99% confidence interval to estimate the true difference in the proportion of "big" bank customers who bank with more than one bank as compared with the "small" customers who bank with more than one bank. Select the correct values of A, B, C, and D. (0.8-A) +80.8)0.2) , (A(1-A) D. A: B: C: D:
A bank wants to estimate the difference in the proportion of its "big" customers who have a second account with a different bank and the proportion of its "small" customers who also have an account with another bank. Of the 200 "big" customers randomly selected, 160 claimed to also bank with other banks. Of the 300 "small" customers randomly selected, 120 claimed to also bank with other banks. Construct a 99% confidence interval to estimate the true difference in the proportion of "big" bank customers who bank with more than one bank as compared with the "small" customers who bank with more than one bank. Select the correct values of A, B, C, and D. (0.8-A) +80.8)0.2) , (A(1-A) D. A: B: C: D:
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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Transcribed Image Text:A bank wants to estimate the difference in the proportion
of its "big" customers who have a second account with a
different bank and the proportion of its "small" customers
who also have an account with another bank. Of the 200
"big" customers randomly selected, 160 claimed to also
bank with other banks. Of the 300 "small" customers
randomly selected, 120 claimed to also bank with other
banks.
Construct a 99% confidence interval to estimate the
true difference in the proportion of "big" bank customers
who bank with more than one bank as compared with
the "small" customers who bank with more than one
bank.
Select the correct values of A, B, C, and D.
|(0.8)(0.2) , (A(1-A)
(0.8 - A) +B,
D
A:
C:
D:
B:
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