smoke cigarettes is 0.39.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Assume that the population proportion of adults who smoke cigarettes is 0.39. A random sample of 300 adults is to be selected to test this claim.
A. What is the shape, mean and standard deviation of the sampling distribution of the sample proportion of 300?
B. What is the probability that the sample proportion will be less than 0.45?
C. What is the probability that the sample proportion will fall within 4 percentage points (+/- 0.4) of the population proportion?
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