Question: Using the Excel file Forecasting Sales Using Ad Dollars Data use Excel to create a forecast of Sales $ using Ad $. Analyze the data
Using the Excel file Forecasting Sales Using Ad Dollars Data use Excel to create a forecast of Sales $ using Ad $.
Analyze the data using simple linear regression in Excel to answer the following questions.
- Does more ad spending increase, decrease, or have no effect on sales $?
- What is the regression equation? Write it and its numerical values.
- Using the regression equation calculate predicted sales and error values and enter them into the Excel spreadsheet in the appropriate spaces.

Home Insert Draw Page Layout View Share Comments P vm A - , % Formulas Data Review Conditional Formatting v ting Format as Table Cell Styles Ov Paste Font Alignment Number Editing Ideas H8 X fx C F G H I J K L M N O P Predicted Sales Error D E Ad $ in Thousands Sales $ in Millions Ad $ Sales $ 41 1250 1380 1425 1425 1450 1300 1400 1510 1575 1650 Sheet1 Sheet2 Sheet3 + @ - G O + 100%
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