Questions from Business Statistics

Q: For Exercise 16 regression model predicting fuel economy (in mpg)

For Exercise 16 regression model predicting fuel economy (in mpg) from the car engine size, se=3.522. Explain in this context what that means.

Q: Fill in the missing information in the following table. /

Fill in the missing information in the following table.

Q: Fill in the missing information in the following table. /

Fill in the missing information in the following table.

Q: Tell what each of the residual plots below indicates about the appropriateness

Tell what each of the residual plots below indicates about the appropriateness of the linear model that was fit to the data.

Q: A candidate for office claims that there is a correlation between television

A candidate for office claims that there is a correlation between television watching and crime. Criticize this statement on statistical grounds.

Q: Tell what each of the residual plots below indicates about the appropriateness

Tell what each of the residual plots below indicates about the appropriateness of the linear model that was fit to the data.

Q: A random sample of records of home sales from Feb. 15

A random sample of records of home sales from Feb. 15 to Apr. 30, 1993, from the files maintained by the Albuquerque Board of Realtors gives the Price and Size (in square feet) of 117 homes. A regress...

Q: The dataset on roller coasters A lists the Duration of the ride

The dataset on roller coasters A lists the Duration of the ride in seconds in addition to the Drop height in feet for some of the coasters. One coaster (the Tower of Terror) is unusual for having a la...

Q: If you create a regression model for predicting the Weight of a

If you create a regression model for predicting the Weight of a car (in pounds) from its Length (in feet), is the slope most likely to be 3, 30, 300, or 3000? Explain.

Q: If you create a regression model for estimating the Height of a

If you create a regression model for estimating the Height of a pine tree (in feet) based on the Circumference of its trunk (in inches), is the slope most likely to be 0.1, 1, 10, or 100? Explain.