Questions from Business Statistics

Q: Recall the data about the Burger King menu items in Chapter 7

Recall the data about the Burger King menu items in Chapter 7. We look at data about Burger King menu items. Here are boxplots of protein content comparing items that contain meat with those that do n...

Q: Recall the example of life expectancy vs. TVs per person in

Recall the example of life expectancy vs. TVs per person in the chapter. In that example, we use the square root of TVs per person. Here are the original data and the re-expressed version. Which of th...

Q: Exercise 17 looked at the distribution of protein in the Burger King

Exercise 17 looked at the distribution of protein in the Burger King menu items, comparing meat and non-meat items. That exercise offered the logarithm as a re-expression of Protein. Here are two othe...

Q: A concert production company examined its records. The manager made the

A concert production company examined its records. The manager made the scatterplot at the top of the next column. The company places concerts in two venues, a smaller, more intimate theater (plotted...

Q: Exercise 18 revisited the relationship between life expectancy and TVs per capita

Exercise 18 revisited the relationship between life expectancy and TVs per capita and saw that re-expression to the square root of TVs per capita made the plot more nearly straight. But was that the b...

Q: The analyst in Exercise 1 tried fitting the regression line to each

The analyst in Exercise 1 tried fitting the regression line to each market segment separately and found the following: What does this say about her concern in Exercise 1? Was she justified in worrying...

Q: The concert production company of Exercise 2 made a second scatterplot,

The concert production company of Exercise 2 made a second scatterplot, this time relating Total Revenue to Ticket Sales. 1. Describe the relationship between Ticket Sales and Total Revenue. 2. How ar...

Q: Can you design a Simpson paradox? Two companies are vying for

Can you design a Simpson paradox? Two companies are vying for a city Best Local Employer award to be given to the company most committed to hiring local residents. Although both employers hired 300 ne...

Q: Noting a recent study predicting the increase in cell phone costs,

Noting a recent study predicting the increase in cell phone costs, a friend remarks that by the time he a grandfather, no one will be able to afford a cell phone. Explain where his thinking went awry....

Q: Using data from 20 compact cars, a consumer group develops a

Using data from 20 compact cars, a consumer group develops a model that predicts the stopping time for a vehicle by using its weight. You consider using this model to predict the stopping time for you...