Question

A sociologist collected data from a sample of people on their highest level of education and the number of times they visited any fast food restaurant during the previous week. The data are summarized in the boxplots. Based on the boxplots, which of the following statements must be true?

a. The number of people surveyed at the more than four-year college level is greater than the number of people surveyed at the high school level.
b. The proportion of people surveyed from the first quartile to the third quartile at the four-year college level is less than the respective proportion at the community college level.
c. The interquartile range (IQR) for the number of visits at the more than four-year college level is less than the IQR for the number of visits at the community college level.
d. The maximum number of visits at the community college level is greater than the maximum number of visits at the high school level.
e. The median number of visits at the four-year college level is greater than the median number of visits at the high school level.

Answer 1

c. The interquartile range (IQR) for the number of visits at the more than four-year college level is less than the IQR for the number of visits at the community college level.

Step-by-step explanation:

The research study focused on the visitation of people to fast food canteens based on their highest levels of education. The data obtained from the research study was analyzed and a summary was developed on a boxplots. It can be inferred that the those at four-year college visited fast food canteens more than those at community college.