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# Answer: In Exercise, find the (a) mean, (b) median, (c)

## Problem 18BSC Chapter 3.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition

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Problem 18BSC

In Exercise, find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. Express answers with the appropriate units of measurement. Then answer the given questions.

Freshman 15 According to the “freshman 15” legend, college freshmen gain 15 pounds (or 6.8 kilograms) during their freshman year. Listed below are the amounts of weight change (in kilograms) for a simple random sample of freshmen included in a study (“Changes in Body Weight and Fat Mass of Men and Women in the First Year of College: A Study of the ‘Freshman 15’” by Hoffman, Policastro, Quick, and Lee, Journal of American College Health, Vol. 55, No. 1). Positive values correspond to students who gained weight and negative values correspond to students who lost weight. Do these values appear to support the legend that college students gain 15 pounds (or 6.8 kilograms) during their freshman year? Why or why not?

11    3   0    −2   3 −2   −2   5    −2  7   2   4  1    8    1    0   −5  2

Step-by-Step Solution:

Step 1 of 2 :

Given, According to the “freshman 15” legend, college freshmen gain 15 pounds (or 6.8 kilograms) during their freshman year. Listed below are the amounts of weight change (in kilograms) for a simple random sample of freshmen included in a study. Positive values correspond to students who gained weight and negative values correspond to students who lost weight.

11    3   0    −2   3 −2   −2   5    −2  7   2   4  1    8    1    0   −5  2

Step 2 of 2

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