Every 5 years a city conducts a survey of residents to collect data on various political, economic, and health indicators. With a new survey coming this year the mayor is especially concerned with jobs and the economy. In the last survey only 41% of people in the city said they felt “very secure” in their job. The mayor wants to be able to estimate that proportion for this year to within a margin of error of +/- 2%. How large of a sample will be needed?
Every 5 years a city conducts a survey of residents to collect data on various political, economic, and health indicators. With a new survey coming this year the mayor is especially concerned with jobs and the economy. In the last survey only 41% of people in the city said they felt “very secure” in their job. The mayor wants to be able to estimate that proportion for this year to within a margin of error of +/- 2%. How large of a sample will be needed?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A) Formulate the hypotheses using the appropriate notation.
B) Calculate the test statistic showing 3 places after the decimal.
C) Find the p-value from the theoretical distribution area in Stat Key
D) Write your conclusion in the language of the problem.
- Every 5 years a city conducts a survey of residents to collect data on various political, economic, and health indicators. With a new survey coming this year the mayor is especially concerned with jobs and the economy. In the last survey only 41% of people in the city said they felt “very secure” in their job. The mayor wants to be able to estimate that proportion for this year to within a margin of error of +/- 2%. How large of a sample will be needed?
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