1 pizza sales and price part 2 for the data in exercise 31, Ask an Expert

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1. Pizza sales and price, part 2. For the data in Exercise 31, the average Sales was 52,697 pounds (SD = 10,261 pounds), and the correlation between Price and Sales was = - 0.547.

If the Price in a particular week was one SD higher than the mean Price, how much pizza would you predict was sold that week?

2. Used Saab prices, part 2. The 38 cars in Exercise 32 had an average Price of $23,847 1SD = $9232, and the correlation between Price and Mileage was = - 0.169.

If the Mileage of a 2004 Saab was 1 SD below the average number of miles, what Price would you predict for it?

3. Packaging. A CEO announces at the annual share- holders meeting that the new see-through packaging for the company's flagship product has been a success. In fact, he says, "There is a strong correlation between packaging and sales." Criticize this statement on statistical grounds.

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Statistics and Probability, Statistics

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