Regression Analysis a Local Grocery Store Wants to Predict

question 31

Essay

Regression Analysis A local grocery store wants to predict its daily sales in dollars.The manager believes that the amount of newspaper advertising significantly affects sales.He randomly selects 7 days of data consisting of daily grocery store sales (in thousands of dollars)and advertising expenditures (in thousands of dollars).The Excel/MegaStat output given above summarizes the results of the regression model.If the manager decides to spend $3,000 on advertising,based on the simple linear regression results given above,what are the estimated sales?

---

Definitions:

Annual Return

The percentage change in an investment's value over a year, including dividends and appreciation.

Investment

Assets purchased with the expectation that they will generate income in the future or appreciate in value.

Semiannually

Occurring twice a year, typically every six months.

Annual Return

This measures the financial gain or loss of an investment over a one-year period, expressed as a percentage of the investment's initial cost.