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Many times in statistics it is necessary to see if a set of data values i normally distributed. There are special techniques that can be used is to draw a histogram for the data and see if it is approximately be It does not have to be exactly symmetric to be bell-shaped.) The numbers of branches of the 50 top libraries are shown.

Many times in statistics it is necessary to see if a set of data values i normally distributed. There are special techniques that can be used is to draw a histogram for the data and see if it is approximately be It does not have to be exactly symmetric to be bell-shaped.) The numbers of branches of the 50 top libraries are shown.

MATLAB: An Introduction with Applications
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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Assessing Normality Many times in statistics it is necessary to see if a set of data values is approximately normally distributed. There are special techniques that can be used. One technique is to draw a histogram for the data and see if it is approximately bell-shaped. (Note: It does not have to be exactly symmetric to be bell-shaped.) The numbers of branches of the 50 top libraries are shown. 67 84 80 77 97 59 62 37 33 42 36 54 18 12 19 33 49 24 25 22 24 29 21 21 24 31 17 15 21 13 19 19 22 22 30 41 22 18 20 26 33 14 14 16 22 26 10 16 24 Source: The World Almanac and Book of Facts. a. Describe the shape of the histogram for the frequency above. b. Based on your answer to question (a), do you feel that the distribution is approximately normal? Explain thoroughly
Transcribed Image Text:Assessing Normality Many times in statistics it is necessary to see if a set of data values is approximately normally distributed. There are special techniques that can be used. One technique is to draw a histogram for the data and see if it is approximately bell-shaped. (Note: It does not have to be exactly symmetric to be bell-shaped.) The numbers of branches of the 50 top libraries are shown. 67 84 80 77 97 59 62 37 33 42 36 54 18 12 19 33 49 24 25 22 24 29 21 21 24 31 17 15 21 13 19 19 22 22 30 41 22 18 20 26 33 14 14 16 22 26 10 16 24 Source: The World Almanac and Book of Facts. a. Describe the shape of the histogram for the frequency above. b. Based on your answer to question (a), do you feel that the distribution is approximately normal? Explain thoroughly
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