ESSENTIALS OF STATISTICS-W/APLIA
ESSENTIALS OF STATISTICS-W/APLIA
4th Edition
ISBN: 9781305611177
Author: HEALEY
Publisher: CENGAGE L
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Chapter 5, Problem 5.8P

S O C On the scale mentioned in problem 5.7, if a score of 40 or more is considered “highly prejudiced.” what is the probability that a person selected at random will have a score in that range?

5.7 S O C A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately normal, with a mean of 31 and a standard deviation of 5. What percentage of the sample had scores

a. below 20? __________

b. below 40? ________

c. between 30 and 40? ____________

d. between 35 and 45? ___________

e. above 25? ___________

f. above 35? __________

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