SCENARIO 13-1
A large national bank charges local companies for using their services.A bank official reported the results of a regression analysis designed to predict the bank's charges (Y) -- measured in dollars per month -- for services rendered to local companies.One independent variable used to predict service charges to a company is the company's sales revenue (X) -- measured in millions of dollars.Data for 21 companies who use the bank's services were used to fit the model:
Yi = 0 + 1 Xi + i
The results of the simple linear regression are provided below.
? = -2,700 +20 X ,SYX = 65,two-tail p value = 0.034 (for testing 1)
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-Referring to Scenario 13-1,interpret the p-value for testing whether 1 exceeds 0.
A) There is sufficient evidence (at the ? = 0.05) to conclude that sales revenue (X) is a useful linear predictor of service charge (Y) .
B) There is insufficient evidence (at the ? = 0.10) to conclude that sales revenue (X) is a useful linear predictor of service charge (Y) .
C) Sales revenue (X) is a poor predictor of service charge (Y) .
D) For every $1 million increase in sales revenue,you expect a service charge to increase $0.034.
Correct Answer:
Verified
Q5: SCENARIO 13-2
A candy bar manufacturer is
Q6: SCENARIO 13-2
A candy bar manufacturer is interested
Q7: SCENARIO 13-2
A candy bar manufacturer is
Q8: The Y-intercept (b0)represents the
A)estimated average Y when
Q9: SCENARIO 13-2
A candy bar manufacturer is interested
Q11: The Y-intercept (b0)represents the
A)predicted value of Y
Q12: SCENARIO 13-2
A candy bar manufacturer is
Q13: SCENARIO 13-2
A candy bar manufacturer is interested
Q14: SCENARIO 13-2
A candy bar manufacturer is interested
Q15: SCENARIO 13-2
A candy bar manufacturer is interested
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