In a Simple Least-Squares Regression Where X Refers to the Number

question 50

Multiple Choice

In a simple least-squares regression where X refers to the number of sales calls made by a sales department and Y refers to the monthly total cost of the sales department, the constant in the regression output would represent:

• A)the estimated monthly total costs of the sales department.
• B)the estimated monthly fixed costs of the sales department.
• C)the estimated monthly variable costs per unit of the sales department.
• D)the percent of variation in Y that is explained by X.

Determine the percentage of data above, below, or between certain values in a normal distribution using standard normal distribution tables or calculations.

Apply knowledge of normal distributions to real-world examples involving human characteristics and behaviors.

Understand the relationship between the mean, standard deviation, and shape of the normal distribution curve.

Calculate percentages related to the lower or upper tails of the normal distribution.