A newspaper believes that the approval rating of the current mayor is 60%. A pollster believes that it is less than 60% and sets out to prove it. A simple random sample of 900 people are surveyed and 504 responded that they approved of his work. The null hypothesis is that the mayor's approval rating is 60%. The observed percentage is %. Find the standard error for percentage. Hint: The SD for the box model is √0.6*0.4=0.49 The standard error for percentage is %. Round your answer to the nearest tenth of a percent(for example 6.3%).
A newspaper believes that the approval rating of the current mayor is 60%. A pollster believes that it is less than 60% and sets out to prove it. A simple random sample of 900 people are surveyed and 504 responded that they approved of his work. The null hypothesis is that the mayor's approval rating is 60%. The observed percentage is %. Find the standard error for percentage. Hint: The SD for the box model is √0.6*0.4=0.49 The standard error for percentage is %. Round your answer to the nearest tenth of a percent(for example 6.3%).
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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Transcribed Image Text:QUESTION 8
A newspaper believes that the approval rating of the
current mayor is 60%. A pollster believes that it is
less than 60% and sets out to prove it. A simple
random sample of 900 people are surveyed and 504
responded that they approved of his work.
The null hypothesis is that the mayor's approval
rating is 60%.
The observed percentage is %. Find the standard
error for percentage. Hint: The SD for the box model
is
0.6*0.4 0.49
The standard error for percentage is %. Round your
answer to the nearest tenth of a percent(for example
6.3%).

Transcribed Image Text:answer to the nearest tenth of a percent(for example
6.3%).
The z-statistic is. Round your answer to two decimal
places.
The p-value is %. Round your answer to the nearest
percent(for example 6%)
If the significance level is set at 5%, does the
pollster have enough evidence to reject the
newspaper claim? Write yes or no.
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