people in the age group 18-29 and 1500 people in the age group 30-55. The sample proportions of people whose main source of news is newspapers is 0.18 and 0.25 for the age groups 18-29 and 30-55, respectively. A. Find the 95% confidence interval for the difference in the proportion of people whose main source of news is newspapers for the two age groups and interpret it. B. At a= 0.10, can it be concluded that the proportion of those whose source of news is newspaper is higher in the age group 30-55? Use the p-value method.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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3.
A study was conducted to investigate where people get their news. The study included 1000
people in the age group 18-29 and 1500 people in the age group 30-55. The sample proportions of people
whose main source of news is newspapers is 0.18 and 0.25 for the age groups 18-29 and 30-55, respectively.
A.
Find the 95% confidence interval for the difference in the proportion of people whose main source
of news is newspapers for the two age groups and interpret it.
В.
is higher in the age group 30-55? Use the p-value method.
At a=0.10, can it be concluded that the proportion of those whose source of news is newspaper
Transcribed Image Text:3. A study was conducted to investigate where people get their news. The study included 1000 people in the age group 18-29 and 1500 people in the age group 30-55. The sample proportions of people whose main source of news is newspapers is 0.18 and 0.25 for the age groups 18-29 and 30-55, respectively. A. Find the 95% confidence interval for the difference in the proportion of people whose main source of news is newspapers for the two age groups and interpret it. В. is higher in the age group 30-55? Use the p-value method. At a=0.10, can it be concluded that the proportion of those whose source of news is newspaper
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