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Listed below are the ages (years) of presidents of the United States at the times of their first inaugurations (from Data Set 22 “Presidents” in Appendix B). Presidents who took office as a result of an assassination or resignation are not included. The data are current as of this writing. Use these ages to construct a frequency distribution. Use a class width of 5 years and begin with a lower class limit of 40 years. Do the ages appear to have a normal distribution?

Listed below are the ages (years) of presidents of the United States at the times of their first inaugurations (from Data Set 22 “Presidents” in Appendix B). Presidents who took office as a result of an assassination or resignation are not included. The data are current as of this writing. Use these ages to construct a frequency distribution. Use a class width of 5 years and begin with a lower class limit of 40 years. Do the ages appear to have a normal distribution?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Listed below are the ages (years) of presidents of the United States at the times of their first inaugurations (from Data Set 22 “Presidents” in Appendix B). Presidents who took office as a result of an assassination or resignation are not included. The data are current as of this writing. Use these ages to construct a frequency distribution. Use a class width of 5 years and begin with a lower class limit of 40 years. Do the ages appear to have a normal distribution?
57 61 57 57 58 57 42 51 56 55 51 54 61 51 54 60 68 49 64 48 65 62 43 55 56 52 52 69 46 64 54 49 47 55 46 54 47 70 54
Transcribed Image Text:57 61 57 57 58 57 42 51 56 55 51 54 61 51 54 60 68 49 64 48 65 62 43 55 56 52 52 69 46 64 54 49 47 55 46 54 47 70 54
Expert Solution
Step 1
Use the Excel Technology to obtain the histogram of the given ages with a lower class limit of 40 years and the class width of 5 years with the following steps:
  • Enter the given ages in the Excel Sheet.
  • Set the Bin Ranges as 40, 45, 50, 55, 60, 65,70 and 75.
  • Go to Data-> Data Analysis->Histogram->Set Input and Bin Range.
  • Set Output Range and Check Chart Output.
  • Press OK.

Thus, the obtained results are:

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