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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%).

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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: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%).
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.
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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