Which of the following would be most helpful in assessing the practical significance of a test of hypotheses about a proportion? A)Test the hypotheses using significance level a = 0.001. B)Report the P-value of your test. C)Take another sample and retest just to make sure the results are not due to chance. D)Construct a 99% confidence interval for the proportion in order to see the magnitude of the proportion.

Which of the following would be most helpful in assessing the practical significance of a test of…

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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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How's the economy? A pollster wants to construct a 95% confidence interval for the proportion of adults who believe that economic conditions are getting better. a. A Gallup poll estimates this proportion to be 0.34. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03? b. Estimate the sample size needed if no estimate of "p" is available.
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Which is true about a 95% confidence interval for a population proportion based on a given sample? A There is a 95% chance that the true sample proportion is in the middle of our interval. There is a 5% chance that our Interval does not contain the population proportion. C The Interval Is wider than a 90% confidence Interval would be. none of these is true.
Subject: accounting
A survey collected data on attitudes toward the quality of customer service in retail stores. The survey found that 270 of the 750 American adults sampled felt that customer service is better today than it was two years ago. We wish to develop a 94% confidence interval for the proportion of American adults who feel customer service is better today than it was two years ago. What is the population? A) the 750 American adults sampled B) customer service representatives C) all American adults
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Which of the following would be most helpful in assessing the practical significance of a test of hypotheses about a proportion?
	A)	Test the hypotheses using significance level a = 0.001.
	B)	Report the P-value of your test.
	C)	Take another sample and retest just to make sure the results are not due to chance.
	D)	Construct a 99% confidence interval for the proportion in order to see the magnitude of the proportion.