Answered: A statistics professor gives a survey…

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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Question

A statistics professor gives a survey to each of the 100 students in an introductory statistics lecture. The survey asks the students to estimate when they typically wake up on weekdays. The data are recorded in terms of the number of hours after midnight the students wake up. The data are included below. Use Excel to calculate the population standard deviation and the population variance.

Round your answers to three decimal places. Do not round until you've calculated your final answer

"Wake up time"

6
7.5
7
8
7.5
6
8.5
7.5
8.5
7
8.5
6.5
9
9
8
6.5
7.5
7
5
6.5
6.5
7
8
6.5
8
5.5
6
6
6.5
7.5
6.5
7
7
6.5
7
6.5
7.5
7.5
7
6.5
7
7.5
6.5
6
6.5
5.5
7
6.5
8
5
6.5
7
6
6.5
7
7
6.5
6
6.5
6.5
6
5
8.5
7
7.5
7.5
7.5
7
6
8
6
7.5
6.5
5.5
5.5
7.5
6.5
6
7
8
6
7
7
7
8
6.5
5.5
7
7
6
7
5.5
6
7
7.5
7
7.5
6
7.5
7

Standard deviation =

Variance =

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