R square can range between -1 and 1, with higher values indicating a better fit of the model.

true/false

If you are running a regression where vehicle miles per gallon (mpg) is the dependent variable, which of the following would not likely be a good independent variable?

Vehicle weight

Average age of vehicle assembly line workers

Age of vehicle

Make and model of a vehicle

When conducting a two-tailed test for two population variances, if the test is two-tailed, use the table corresponding to /2. For example, if = 0.10 for a two-tailed test, the appropriate F table is the one with the upper tail equal to 0.05.

True/False