# GBA334 midterm exam latest 2018 march

## Based on this equation, by how much could a teacher expect his or her salary to increase for every additional tear of service?

A. \$1,210.89X

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B. \$1,210.89

C. \$1,210.89 + X

D. \$23,313.22

A. \$35,422.12

B. \$34,522.12

C. \$35,683.48

D. \$36,583.48

## Assume a teacher has five years of experience. What is the forecasted salary?

A. \$29,337.22

B. \$29,337.67

C. \$29,367.22

D. \$29,367.67

Y = 23,313.22 + 1,210.89(5)

Y = 23,313.22 + 6,054.45

Y = 29,367.67

True

False

## 5. Which of the following statements is false concerning the hypothesis testing procedure for a regression model?

A. The F-test statistic is used.

B. The null hypothesis is that the true slope coefficient is equal to zero.

C. The null hypothesis is rejected if the adjusted r2 is above the critical value

D. An ? level must be selected.

E. The alternative hypothesis is that the true slope coefficient is not equal to zero.

Answer: The null hypothesis is that the true slope coefficient is equal to zero.

True

False

True

False

True

False

## 9. If computing a causal linear regression model of Y = a + bX and the resultant r2 is very near zero, then one would be able to conclude that:

A. Y = a + bX is a good forecasting method.

B. Y = a + bX is not a good forecasting method.

C. a multiple linear regression model is a good forecasting method for the data.

D. a multiple linear regression model is not a good forecasting method for the data.

Answer: Y = a + bX is a good forecasting method.

## What is the forecasted monthly electric bill?

A. \$111.88

B. \$127.72

C. \$136.28

D. \$205.72 