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Jais one province were female. Recently, one survey shows that 231 of 328 randomly selected principal in that province were female. 1.(2) Check if the sample proportion P is approximately normal. 2.(4) Is there any evidence to suggest that the proportion of female principals has changed? Use a = 0.05. 3.(3) Find the 99% confidence interval for the true population proportion P. 4.(3) Use above info as prior experience, find the minimum sample size such that the bound on error of estimation is no larger than 0.1, for a 99% confidence interval.

Jais one province were female. Recently, one survey shows that 231 of 328 randomly selected principal in that province were female. 1.(2) Check if the sample proportion P is approximately normal. 2.(4) Is there any evidence to suggest that the proportion of female principals has changed? Use a = 0.05. 3.(3) Find the 99% confidence interval for the true population proportion P. 4.(3) Use above info as prior experience, find the minimum sample size such that the bound on error of estimation is no larger than 0.1, for a 99% confidence interval.

MATLAB: An Introduction with Applications
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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Q3(12). The historical data shows that approximately 64% of public school principals in one province were female. Recently, one survey shows that 231 of 328 randomly selected principal in that province were female. 1.(2) Check if the sample proportion P is approximately normal. 2.(4) Is there any evidence to suggest that the proportion of female principals has changed? Use a = 0.05. 3.(3) Find the 99% confidence interval for the true population proportion P. 4.(3) Use above info as prior experience, find the minimum sample size such that the bound on error of estimation is no larger than 0.1, for a 99% confidence interval.
Transcribed Image Text:Q3(12). The historical data shows that approximately 64% of public school principals in one province were female. Recently, one survey shows that 231 of 328 randomly selected principal in that province were female. 1.(2) Check if the sample proportion P is approximately normal. 2.(4) Is there any evidence to suggest that the proportion of female principals has changed? Use a = 0.05. 3.(3) Find the 99% confidence interval for the true population proportion P. 4.(3) Use above info as prior experience, find the minimum sample size such that the bound on error of estimation is no larger than 0.1, for a 99% confidence interval.
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