# Question: Refer to the data in Exercise 11 44 The student with

Refer to the data in Exercise 11.44. The student with 14 years of experience with a starting salary of $ 97,900 was hired by a family business. In return for a low starting salary, the student received a large equity share in the firm.

a. Would the data value associated with this student be considered a high leverage or a high influence data value?

b. Would the slope increase or decrease if this point was removed from the analysis?

c. In which direction (larger or smaller) would the removal of this data point change the residual standard deviation?

d. How would the removal of this data point change the correlation?

In exercise

a. Would the data value associated with this student be considered a high leverage or a high influence data value?

b. Would the slope increase or decrease if this point was removed from the analysis?

c. In which direction (larger or smaller) would the removal of this data point change the residual standard deviation?

d. How would the removal of this data point change the correlation?

In exercise

## Answer to relevant Questions

Refer to the data in Exercise 11.47. a. Refit the regression model with the data value (14, 97.9) removed. How large were the changes in the slope and residual standard deviation? b. Compute the correlation coefficient with ...A construction science class project was to compare the daily gas consumption of 20 homes with a new form of insulation to that of 20 similar homes with standard insulation. The students set up instruments to record the ...Refer to Exercise 11.57. a. For this exercise, would it make sense to give any physical interpretation to β0? b. Consider an alternative model relating weight gain to amount of lysine ingested: Distinguish between this ...Refer to Exercise 11.65. a. Estimate the mean fuel usage for a 1000- mile flight. Provide a 95% confidence interval for your estimate. b. Predict the fuel usage for a particular 1000- mile flight. Would a fuel usage of 700 ...In a scatterplot of the data from Exercise 11.73, do you see any problems with the data? In exercisePost your question