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An educator wants to construct a 90% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 500 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) what parameter are we estimating? μ X b) What is the point estimate of that parameter? p c) What is a success for this problem? not proficient in reading d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. vX X f) Round to the fourth. We are 90% confident that the true proportion of California school children that are proficient in reading is between and

An educator wants to construct a 90% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 500 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) what parameter are we estimating? μ X b) What is the point estimate of that parameter? p c) What is a success for this problem? not proficient in reading d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. vX X f) Round to the fourth. We are 90% confident that the true proportion of California school children that are proficient in reading is between and

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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An educator wants to construct a 90% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 500 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) what parameter are we estimating? u ✓X b) What is the point estimate of that parameter? p c) What is a success for this problem? not proficient in reading ✓X d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. ✓X f) Round to the fourth. We are 90% confident that the true proportion of California school children that are proficient in reading is between and
Transcribed Image Text:An educator wants to construct a 90% confidence interval for the true proportion of California school children who are proficient in reading. Suppose that of a simple random sample of 500 California school children, 70% were proficient in reading. We are interested in the number that were proficient in reading. a) what parameter are we estimating? u ✓X b) What is the point estimate of that parameter? p c) What is a success for this problem? not proficient in reading ✓X d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. ✓X f) Round to the fourth. We are 90% confident that the true proportion of California school children that are proficient in reading is between and
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