2023 Week 7 Assignment Question 1 Assume you have noted the following prices for paperback books and the | Assignments Online
2023 Week 7 Assignment Question 1 Assume you have noted the following prices for paperback books and the | Assignments Online
Assignments Online 2023 Business Finance
Week 7 Assignment
Question 1
Assume you have noted the following prices for paperback books and the number of pages that each book contains.
Develop a least-squares estimated regression line.
- Compute the coefficient of determination and explain its meaning.
- Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use α = 0.10.
Question 2
The following data represent a company’s yearly sales volume and its advertising expenditure over a period of 8 years.
- Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising.
- Use the method of least squares to compute an estimated regression line between sales and advertising.
- If the company’s advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars.
- What does the slope of the estimated regression line indicate?
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