Stanley statstudent is diligently working on a project for class. He has collect
ID: 3366197 • Letter: S
Question
Stanley statstudent is diligently working on a project for class. He has collected a random sample of data and calculates a 95% confidence interval for the proportion of all professional baseball players that are left-handed to be 25.42%Stanley statstudent is diligently working on a project for class. He has collected a random sample of data and calculates a 95% confidence interval for the proportion of all professional baseball players that are left-handed to be 25.42%
Stanley statstudent is diligently working on a project for class. He has collected a random sample of data and calculates a 95% confidence interval for the proportion of all professional baseball players that are left-handed to be 25.42%
Stanley statstudent is diligently working on a project for class. He has collected a random sample of data and calculates a 95% confidence interval for the proportion of all professional baseball players that are left-handed to be 25.42%
Explanation / Answer
Ans:
a)We are 95% confident that the population proportion is between 25.42%-11.11% and 25.42%+11.11%
or 14.31 and 36.53%
b)Width depends on the Margin of error which is z*sqrt(p*q/n)
Increasing "n" (the sample size) will shink the ME and therefore shink the width.
Decrease ME by decreasing z by increasing the level of confidence.
c)
Increase the sample size.
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