Before conducting a study it is often a good idea to decide on the necessary sample size. To do so, statisticians often first decide on anacceptable margin of error and then work backward to the sample size. Since they haven't run the study yet it is common practice to approximate thesample proportion as 50% since this is the worst case scenario.Recall that the standard eror for a single proportion isSE =P(1-p)Note: The calculation to find the sample size will likely give a decimal answer so be sure to round appropriately so that the actual margin of error will beless than what the researchers want.(a) If researchers decide on a 4.2% margin of error for a 95% confidence interval. What sample size should they pursue?(b) If researchers decide on a 2.8% margin of error for a 99% confidence interval. What sample size should they pursue?

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Description: Before conducting a study it is often a good idea to decide on the necessary sample size. To do so, statisticians often first decide on anacceptable margin of error and then work backward to the sample size. Since they haven't run the study yet it i

From provided information, Sample proportion is (p̂) = 50% i.e. 0.5 The sample size can be…

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(a) If researchers decide on a 4.2% margin of error for a 95% confidence interval. What sample size should they pursue? If researchers decide on a 2.8% margin of error for a 99% confidence interval. What sample size should they pursue?

(a) If researchers decide on a 4.2% margin of error for a 95% confidence interval. What sample size should they pursue? If researchers decide on a 2.8% margin of error for a 99% confidence interval. What sample size should they pursue?

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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