Chapter 12, Problem T12.1SPT

To determine

To find out from the options that which of the following is not one of the conditions that must be satisfied in order to perform inference about the slope of a least-square regression line.

Answer to Problem T12.1SPT

Option (c) is the correct option.

Explanation of Solution

Now, in the question we have to find out that which of these is not one of the conditions that must be satisfied in order to perform inference about the slope of a least-square regression line. Thus, we know that there are five conditions in order to perform inference about the slope of a least-squares regression line, that are: Random, Normal, Independent, Linear, Equal variance.

Thus, by looking at the options to get that:

Option (a) must be satisfied because it is the Normal requirement.

Option (b) must be satisfied because it is the Equal variance requirement.

Option (c) must not be satisfied because we require no limitations on the sample size.

Option (d) must be satisfied because it is the Linear requirement.

Option (e) must be satisfied because it is the Random requirement.

Thus, we have option (c) is not one of the condition that must be satisfied in order to perform inference about the slope of a least-square regression line.