What is the proper interpretation of a confidence interval for the difference in two proportions that has a negative number and a positive number, such as (-25% to +35%)? Such an interval suggests that the two proportions are quite similar, and that we cannot tell which population's proportion is higher The analyst has made an error, because such an interval cannot occar when cakulated properly We do not worry about the negative sign, and such an intervalwould have the same interpretation as (25% to 35%). Because 35 25 %, we conclude that the first proportion is higher than the

What is the proper interpretation of a confidence interval for the difference in two proportions that has a negative number and a positive number, such as (-25% to +35%)? Such an interval suggests that the two proportions are quite similar, and that we cannot tell which population's proportion is higher The analyst has made an error, because such an interval cannot occar when cakulated properly We do not worry about the negative sign, and such an intervalwould have the same interpretation as (25% to 35%). Because 35 25 %, we conclude that the first proportion is higher than the

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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What is the effect on the size of the confidence interval if a T score is used instead of a Z score? It causes the interval to be bigger. It has no effect on the interval. It causes the interval to be smaller.
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A 99% confidence interval is smaller in size than a 95% confidence interval because it is more accurate. True False
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