(c)Find the probability that more than 6.4% of the individuals in the sample of 115 hold multiple jobs. (d)Find the probability that the proportion of individuals in the sample of 115 who hold multiple jobs is between 18% and 22%. (e)Would it be unusual if less than 15% of the individuals in the sample of 115 held multiple jobs?
(c)Find the probability that more than 6.4% of the individuals in the sample of 115 hold multiple jobs. (d)Find the probability that the proportion of individuals in the sample of 115 who hold multiple jobs is between 18% and 22%. (e)Would it be unusual if less than 15% of the individuals in the sample of 115 held multiple jobs?
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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Just need help with C, D and E
Transcribed Image Text:6) About 17% of employed adults in the United States held multiple jobs
(a) A random sample of 45 employed adults is chosen.
Is it appropriate to use the normal approximation to find the probability that less than 6.9 %
of the individuals in the sample hold multiple jobs? If so, find the probability. If not, explain why
not.
(b)A new sample of 115 employed adults is chosen. Find the probability that less than 6.9 %
of the individuals in this sample hold multiple jobs.
Transcribed Image Text:(c)Find the probability that more than 6.4% of the individuals in the sample of 115 hold multiple
jobs.
(d)Find the probability that the proportion of individuals in the sample of 115 who hold multiple
jobs is between 18% and 22%.
(e)Would it be unusual if less than 15% of the individuals in the sample of 115 held multiple
jobs?
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