Questions from Business Statistics

Q: Here is a mosaic plot of the data on Fish consumption and

Here is a mosaic plot of the data on Fish consumption and Prostate cancer from the Step-by-Step Example on page 71. 1. From the mosaic plot, about what percent of all men in this survey were diagnosed...

Q: Here is a mosaic plot of the data from Exercise 1 on

Here is a mosaic plot of the data from Exercise 1 on whether college provides value from a survey of U.S. adults and college presidents: 1. From the mosaic plot, about what percent of the respondents...

Q: Are the patterns seen in Exercises 5 and 6 relating diet to

Are the patterns seen in Exercises 5 and 6 relating diet to political opinion the same for men and women? Here are two contingency tables: 1. Are women or men more likely to be conservative carnivores...

Q: The Research and Innovative Technology Administration of the Bureau of Transportation Statistics

The Research and Innovative Technology Administration of the Bureau of Transportation Statistics (www.TranStats.bts.gov/Data_Elements.aspx?Data=2) reports load factors (passenger-miles as a percentage...

Q: Here is a timeplot of the same domestic load factors as in

Here is a timeplot of the same domestic load factors as in Exercise 9, but this time with a different smoother (called a median smoother) applied. 1. What can you see in the time plot with the smoothe...

Q: Discoveries of planets beyond our solar system have grown rapidly. Here

Discoveries of planets beyond our solar system have grown rapidly. Here is a histogram showing the distance (in light-years) from earth to stars that have known planets (as of 2016): Explain why it mi...

Q: Here are the exoplanet distances of Exercise 11, re-expressed

Here are the exoplanet distances of Exercise 11, re-expressed to the log scale: 1. Is this a better scale to understand these distances? 2. The low outlier is sol that is, it is the distance of the su...

Q: We can also compare domestic load factors for September through March versus

We can also compare domestic load factors for September through March versus those for April through August: Compare and contrast what these histograms show.

Q: The boxplot shows the fuel economy ratings for 67 model year 2012

The boxplot shows the fuel economy ratings for 67 model year 2012 subcompact cars. Some summary statistics are also provided. The extreme outlier is the Mitsubishi i-MiEV, an electric car whose electr...

Q: In a way, boxplots are the opposite of histograms. A

In a way, boxplots are the opposite of histograms. A histogram divides the number line into equal intervals and displays the number of data values in each interval. A boxplot divides the data into equ...