what proportion of people in relationships are dissatisfied?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A certain test is designed to measure the satisfaction of an individual with his/her relationship. Suppose that the scores on this test are approximately normally
distributed with a mean of 60 and a standard deviation of 8. An individual with a score of 50 or less is considered dissatisfied with his/her relationship. According
to this criterion, what proportion of people in relationships are dissatisfied? Round your answer to at least four decimal places.
Transcribed Image Text:A certain test is designed to measure the satisfaction of an individual with his/her relationship. Suppose that the scores on this test are approximately normally distributed with a mean of 60 and a standard deviation of 8. An individual with a score of 50 or less is considered dissatisfied with his/her relationship. According to this criterion, what proportion of people in relationships are dissatisfied? Round your answer to at least four decimal places.
Expert Solution
Step 1

Let , X→N(μ=60 , σ=8)

Since , an individuals with a score 50 or less is considered dissatisfied.

Our aim is to find the proportion of people in relationship are dissatisfied.

 

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