6.58 Superstitions survey. A Harris (Feb. 2013) poll found that one-third of Americans (33%) believe finding and pick- ing up a penny is good luck. Assume that the true propor- tion of all Americans who believe finding and picking up a penny is good luck is p = .33. In a random sample of 1,000 Americans, let p represent the proportion who believe find- ing and picking up a penny is good luck. a. Describe the properties of the sampling distribution of p. b. Find P(p < .40). Interpret this result. c. Find P(p > .30). Interpret this result.
6.58 Superstitions survey. A Harris (Feb. 2013) poll found that one-third of Americans (33%) believe finding and pick- ing up a penny is good luck. Assume that the true propor- tion of all Americans who believe finding and picking up a penny is good luck is p = .33. In a random sample of 1,000 Americans, let p represent the proportion who believe find- ing and picking up a penny is good luck. a. Describe the properties of the sampling distribution of p. b. Find P(p < .40). Interpret this result. c. Find P(p > .30). Interpret this result.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Can you do problem 6.58?
Transcribed Image Text:vacation is p = .35. Now consider a random sample of 500
U.S. adults.
a. What is the probability that between 50% and 60% of
the sampled adults do not work during summer vacation?
b. What is the probability that over 40% of the sampled
adults do not work during summer vacation?
6.58 Superstitions survey. A Harris (Feb. 2013) poll found that
one-third of Americans (33%) believe finding and pick-
ing up a penny is good luck. Assume that the true propor-
tion of all Americans who believe finding and picking up a
penny is good luck is p = .33. In a random sample of 1,000
Americans, let p represent the proportion who believe find-
ing and picking up a penny is good luck.
a. Describe the properties of the sampling distribution
of p.
b. Find P(p <.40). Interpret this result.
c. Find P(p > .30). Interpret this result.
%3D
Applying the Concepts-Intermediate
6.59 Crop damage by wild boars. Refer to the Current Zoology
111
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