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?
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?
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 5CR
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Question
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?
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
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 region of the curve to shade.
- Enter the Probability value as 10 and 0.10.
- Click OK.
Output using the MINITAB software is given below:
![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](https://content.bartleby.com/qna-images/answer/8ec1e1e3-806d-4817-beae-53481be177f7/b89a7ad5-b4f6-4028-afd5-a3f246725b12/r79bqhj.png)
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Solved in 2 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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