Questions from Statistics

Q: The means are the same, but the standard deviation of one

The means are the same, but the standard deviation of one of the sets is larger than that of the other. Report the mean and both standard deviations.

Q: The means are different, but the standard deviations are the same

The means are different, but the standard deviations are the same. Report the standard deviation and both means.

Q: The mean of set A is smaller than that of set B

The mean of set A is smaller than that of set B, but the median of set B is smaller than that of set A. Report the mean and the median of both sets of data.

Q: The tables below show the percentage of the population in western and

The tables below show the percentage of the population in western and southern states of the U.S. with a bachelor’s degree. Write a short report comparing the education attainment of...

Q: The tables below show the 2015 unemployment rates for states in the

The tables below show the 2015 unemployment rates for states in the northeastern and Midwestern regions of the United States. Compare the unemployment rates for the two regions, commenting on the typi...

Q: The following histograms show ticket prices for professional hockey (NHL)

The following histograms show ticket prices for professional hockey (NHL) and professional football (NFL) tickets. a. Based on the shape of the distributions, which measure of center should be used to...

Q: The following histograms show ticket prices for professional baseball (MLB)

The following histograms show ticket prices for professional baseball (MLB) and professional basketball (NBA) tickets. a. Based on the shape of the distributions, which measure of center should be use...

Q: Give an example of another numerical variable we might have recorded for

Give an example of another numerical variable we might have recorded for the students whose data are in Table 1A?

Q: An exam score has a mean of 80 and a standard deviation

An exam score has a mean of 80 and a standard deviation of 4. a. Find and interpret in context an exam score that corresponds with a z-score of 2. b. What exam score corresponds with a z-score of -1.5...

Q: Three-year-old boys in the United States have a

Three-year-old boys in the United States have a mean height of 38 inches and a standard deviation of 2 inches. How tall is a three-year-old boy with a z-score of -1.0? (Source: www.kidsgrowth.com)