According to a 2017 Gallup poll, 80% of Americans report being afflicted by stress. Suppose a random

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According to a 2017 Gallup poll, 80% of Americans report being afflicted by stress. Suppose a random sample of 1000 Americans is selected.

a. What percentage of the sample would we expect to report being afflicted by stress?

b. Verify that the conditions for the Central Limit Theorem are met.

c. What is the standard error for this sample proportion?

d. According to the Empirical Rule, there is a 95% probability that the sample proportion will fall between what two values?

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Introductory Statistics Exploring The World Through Data

ISBN: 9780135163146

3rd Edition

Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan

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Question Posted: Jul 14, 2021 03:53 AM

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According to a 2017 Gallup poll, 80% of Americans report being afflicted by stress. Suppose a random

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a Since the sample is random we should expect the percentage of people that report ...View the full answer

Introductory Statistics Exploring The World Through Data

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