Correlation and Regression Analysis Worksheet

What is the r value for the correlation between Newspaper Ad Sales and Total Sales? Round to 3 decimal places.

• 0.158

• 0.842

• 0.527

• 0.238

How would you categorize the correlation between Newspaper Ad Sales and Total Sales?

• Strong Positive Correlation

• Weak Positive Correlation

• Strong Negative Correlation

• No Correlation

Should you use the regression line for correlation between Newspaper Ad Sales and Total Sales to make sales prediction?

• Yes, it is a good idea

• No, that is a bad idea

What is the line of regression for Newspaper Ad Sales and Total Sales?

• y = 0.04x + 13.96

• y = 93.23x + 29

• y = 0.158x + 14

• y = .553x + 23

What is the r value for the correlation between Radio Ad Sales and Total Sales? Round to 2 decimal places.

• 0.47

• 0.35

• 0.17

• 0.79

How would you categorize the correlation between Radio Ad Sales and Total Sales?

• Moderate Positive Correlation

• Weak Positive Correlation

• Weak Negative Correlation

• No Correlation

What is the line of regression for Radio Ad Sales and Total Sales?

• y = 0.35x + 12.24

• y = 0.489x + 31

• y = 15x + 0.35

• y = .12x + 12.24

Should you use the regression line for correlation between Radio Ad Sales and Total Sales to make sales prediction?

• Yes, it is a good idea

• No, that is a bad idea

What is the r value for the correlation between TV Ad Sales and Total Sales? Round to 2 decimal places.

• 0.06

• 0.74

• 0.90

• 0.97

How would you categorize the correlation between TV Ad Sales and Total Sales?

• Very Strong Positive Correlation

• Strong Positive Correlation

• Very Strong Negative Correlation

• Weak Negative Correlation