subparts 7-9 7. What proportion, percent, and number of people had well-being scores between 75 and 90points?8. What proportion, percent, and number of people had a well-being score less than 115 points?9. What proportion, percent, and number of people had a well-being score above 110 points? For your doctoral dissertation, you decide to study the social well-being of 100,000 people. You ask themto complete a questionnaire that measures social well-being. Higher numbers indicate more positivewell-being. Your results indicate that the average well-being score is 100 points with a standard deviationof 20 points. Use this information to answer problems 1-16 below.Finding Probability under the Normal CurveNote: to report number of people, multiply the proportion by the number of people. Always round peopleUP to a whole number.

Name: subparts 7-9 7. What proportion, percent, and number of people had wel
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Description: subparts 7-9 7. What proportion, percent, and number of people had well-being scores between 75 and 90points?8. What proportion, percent, and number of people had a well-being score less than 115 points?9. What proportion, percent, and number of peop

Solution: Let X be the score. From the given information, µ=100 points and σ=20 points.

Answered: For your doctoral dissertation, you…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter7: Applying Fractions

Section7.2: Proportions

Problem 47WE

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subparts 7-9

7. What proportion, percent, and number of people had well-being scores between 75 and 90
points?
8. What proportion, percent, and number of people had a well-being score less than 115 points?
9. What proportion, percent, and number of people had a well-being score above 110 points?

For your doctoral dissertation, you decide to study the social well-being of 100,000 people. You ask them
to complete a questionnaire that measures social well-being. Higher numbers indicate more positive
well-being. Your results indicate that the average well-being score is 100 points with a standard deviation
of 20 points. Use this information to answer problems 1-16 below.
Finding Probability under the Normal Curve
Note: to report number of people, multiply the proportion by the number of people. Always round people
UP to a whole number.

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