Question
Asked Nov 18, 2019
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Let’s assume that weight is normally distributed with a mean of 160 and a standard deviation
of 25 pounds. The middle 80% 0f all people lie between which two weights?
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Expert Answer

Step 1

Step-by-step procedure to obtain the middle 80% 0f all people lie between which two weights using MINITAB:

  • Choose Graph > Probability Distribution Plot choose View Probability > OK.
  • From Distribution, choose ‘Normal’ distribution.
  • Enter mean as 160 and Standard deviation as 25.
  • Click the Shaded Area
  • Choose Probability and Middle Tail for the regio...
Distribution Plot
Normal, Mean=160, StDev= 25
0.018
0.8
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0.000
128.0
160
192.0
х
Density
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Image Transcriptionclose

Distribution Plot Normal, Mean=160, StDev= 25 0.018 0.8 0.016 0.014 0.012 0.010 0.008 0.006 0.004 0.002 0.000 128.0 160 192.0 х Density

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Statistics

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