A research group is on a college campus and is conducting a survey regarding the coffee consumption of college students in America. They randomly select three sample groups of 100 registered students to complete their survey, which asks the students to identify the average number of 8-ounce cups of coffee they consume each day. The results of the three sample groups are shown in the table below.

0 1 2 3 4+

Sample #1 38 19 26 16 1

Sample #2 32 14 37 15 2

Sample #3 41 22 31 6 0

One researcher looked at the results and made the following inference: "More college students don't drink coffee than do." Is this a valid conclusion? Explain your reasoning using complete sentences.

Question

Samuel Blevins

Mathematics

23 October, 22:51

A research group is on a college campus and is conducting a survey regarding the coffee consumption of college students in America. They randomly select three sample groups of 100 registered students to complete their survey, which asks the students to identify the average number of 8-ounce cups of coffee they consume each day. The results of the three sample groups are shown in the table below.

0 1 2 3 4+

Sample #1 38 19 26 16 1

Sample #2 32 14 37 15 2

Sample #3 41 22 31 6 0

One researcher looked at the results and made the following inference: "More college students don't drink coffee than do." Is this a valid conclusion? Explain your reasoning using complete sentences.

+1

Answers (1)

Know the Answer?

Jordan Ellison · Answer 1

No, because the samples were only taken from a single campus and the inference made is between the researcher and the general college student population. The valid inference is when the researcher compares himself to the students of that campus where they got their samples.