A survey is planned to determine what proportion of high-school students in a metropolitan school system have regularly smoked marijuana. The school administrators would like to estimate the proportion with 99 % confidence and a margin of error of no more than 4.5%. It was reported that 26.52% of high school students in a similar metropolitan area regularly smoke marijuana. If this estimate is used, what sample size would be required? n =If the administrators choose not to use the estimate from the similar metropolitan area, what sample size would be required? n =If the level of confidence were decreased to 96 %, what would happen to the required sample size?The sample size would not be affected.A smaller sample size would be required.A larger sample size would be required.

* SOLUTION :- From the given information the calculations are shown below

Answered: survey is planned to determine what…

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 survey is planned to determine what proportion of high-school students in a metropolitan school system have regularly smoked marijuana. The school administrators would like to estimate the proportion with 99 % confidence and a margin of error of no more than 4.5%.

It was reported that 26.52% of high school students in a similar metropolitan area regularly smoke marijuana. If this estimate is used, what sample size would be required? n =
If the administrators choose not to use the estimate from the similar metropolitan area, what sample size would be required? n =
If the level of confidence were decreased to 96 %, what would happen to the required sample size?
- The sample size would not be affected.
- A smaller sample size would be required.
- A larger sample size would be required.

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