What is the unit for sleep(answer: hours)?  Is its skewness and kurtosis really far enough away from zero to say it is not normal?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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What is the unit for sleep(answer: hours)?  Is its skewness and kurtosis really far enough away from zero to say it is not normal? I was in the chat with two people and they could not assist. I was told to submit my question to a specialtist. 

 

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Sleep
Cumulative
Frequency
Percent
Valid Percent
Percent
Valid
3.50
9.1
1
8.3
9.1
4.00
1
8.3
9.1
18.2
5.00
1
8.3
9.1
27.3
5.50
1
8.3
9.1
36.4
6.00
3
25.0
27.3
63.6
6.50
16.7
18.2
81.8
7.00
16.7
18.2
100.0
Total
11
91.7
100.0
Missing
System
1
8.3
Total
12
100.0
Transcribed Image Text:Sleep Cumulative Frequency Percent Valid Percent Percent Valid 3.50 9.1 1 8.3 9.1 4.00 1 8.3 9.1 18.2 5.00 1 8.3 9.1 27.3 5.50 1 8.3 9.1 36.4 6.00 3 25.0 27.3 63.6 6.50 16.7 18.2 81.8 7.00 16.7 18.2 100.0 Total 11 91.7 100.0 Missing System 1 8.3 Total 12 100.0
Expert Solution
Step 1

Given information:

  Frequency Percent Valid Percent Cumulative Percent
3.50 1 8.3 9.1 9.1
4.00 1 8.3 9.1 18.2
5.00 1 8.3 9.1 27.3
5.50 1 8.3 9.1 36.4
6.00 3 25.0 27.3 63.6
6.50 2 16.7 18.2 81.8
7.00 2 16.7 18.2 100.0
Valid total  11 91.7 100  
Missing  1 8.3    
Total 12 100.0    
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