Answered: Opinion Research has said that 49.46%…

Name: Opinion Research has said that 49.46% of U.S. adults have purchased li
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Description: Opinion Research has said that 49.46% of U.S. adults have purchased life insurance. Suppose that for a random sample of 47 adults from a given U.S. city, a researcher finds that only 48.18% of them have purchased life insurance. At the 0.01 level, is

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Opinion Research has said that 49.46% of U.S. adults have purchased life insurance. Suppose that for a random sample of 47 adults from a given U.S. city, a researcher finds that only 48.18% of them have purchased life insurance. At the 0.01 level, is this sample finding significantly lower than the 49.46% reported by Opinion Research?

Select one:

a) z_stat = -2.11 and z_cr = -2.33 : The sample finding significantly lower than the reported percentage by Opinion Research

b) z_stat = -2.11 and z_cr = -2.33 : The sample finding is not significantly lower than the reported percentage by Opinion Research

c) z_stat = -2.8696 and z_cr = -2.58 : The sample finding is not significantly lower than the reported percentage by Opinion Research

d) z_stat = -2.8696 and z_cr = -2.58 : The sample finding significantly lower than the reported percentage by Opinion Research

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