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A Large National Bank Charges Local Companies for Using Its E(y)=β0+β1x.E ( y ) = \beta _ { 0 } + \beta _ { 1 } x .

Question 28

Multiple Choice

A large national bank charges local companies for using its services. A bank official reported the results of a regression analysis designed to predict the bankʹs charges (y) , measured in dollars per
Month, for services rendered to local companies. One independent variable used to predict the
Service charge to a company is the companyʹs sales revenue (x) , measured in $ million. Data for 21
Companies who use the bankʹs services were used to fit the model E(y) =β0+β1x.E ( y ) = \beta _ { 0 } + \beta _ { 1 } x .
The results of the simple linear regression are provided below.
y^=2,700+20x\hat { y } = 2,700 + 20 x
Interpret the estimate of β0\beta _ { 0 } , the yy -intercept of the line.


A) All companies will be charged at least $2,700\$ 2,700 by the bank.
B) For every $1\$ 1 million increase in sales revenue, we expect a service charge to increase $2,700\$ 2,700 .
C) About 95%95 \% of the observed service charges fall within $2,700\$ 2,700 of the least squares line.
D) There is no practical interpretation since a sales revenue of $0\$ 0 is a nonsensical value.

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