Questions from Statistics

Q: The histogram shows the lengths of ring fingers (in millimeters)

The histogram shows the lengths of ring fingers (in millimeters) for a sample of eighth-graders. (Source: AMSTAT Census at School) a. Without doing any calculations, approximate the mean finger length...

Q: The histogram shows the lengths of index fingers (in millimeters)

The histogram shows the lengths of index fingers (in millimeters) for a sample of eighth-graders. (Source: AMSTAT Census at School) a. Use the histogram to approximate the mean ring finger length for...

Q: a. In your own words, describe to someone who knows

a. In your own words, describe to someone who knows only a little statistics how to recognize when an observation is an outlier. What action(s) should be taken with an outlier? b. Which measure of the...

Q: When you are comparing two sets of data and one set is

When you are comparing two sets of data and one set is strongly skewed and the other is symmetric, which measures of the center and variation should you choose for the comparison?

Q: A dieter recorded the number of calories he consumed at lunch for

A dieter recorded the number of calories he consumed at lunch for one week. As you can see, a mistake was made on one entry. The calories are listed in increasing order: 331, 374, 387, 392, 405, 4200...

Q: In 1994, Major League Baseball (MLB) players went on

In 1994, Major League Baseball (MLB) players went on strike. At the time, the average salary was $1,049,589, and the median salary was $337,500. If you were representing the owners, which summary woul...

Q: The following table shows the fat content (in grams) and

The following table shows the fat content (in grams) and calories for a sample of granola bars. (Source: calorielab.com) a. Use technology to make a scatterplot of the data. Use fat as the independen...

Q: In Table 1A, there are observations on how many people?

In Table 1A, there are observations on how many people?

Q: The scatterplot shows the shoe size and height for some men (

The scatterplot shows the shoe size and height for some men (M) and women (F). a. Why did we not extend the red line (for the women) all the way to 74 inches, instead stopping at 69 inches? b. How do...

Q: The following scatterplot shows the age in years and the number of

The following scatterplot shows the age in years and the number of hours of sleep for some men (M) and women (F). a. How do we interpret the fact that both lines have a negative slope? b. How do we in...