For a random sample of 500 students aged 15-17 in the United States, the numbers of hours a week usually spent on talking on a phone are summarized below for female students and male students. (Source of data: Census at School - United States). Group Sample size Sample mean Sample standard deviation Female 277 4.07 10.6 Male 223 2.13 4.3 (The distribution of numbers of hours a week usually spent on talking on a phone for female students has the standard deviation greater than the mean, because it is right skewed and has many severe outliers).

For a random sample of 500 students aged 15-17 in the United States, the numbers of hours a week usually spent on talking on a phone are summarized below for female students and male students. (Source of data: Census at School - United States). Group Sample size Sample mean Sample standard deviation Female 277 4.07 10.6 Male 223 2.13 4.3 (The distribution of numbers of hours a week usually spent on talking on a phone for female students has the standard deviation greater than the mean, because it is right skewed and has many severe outliers).

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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