
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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When 99% confidence interval is calculated instead of a 95% confidence interval with the same
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- For a confidence level of 94%, find the critical value for a confidence interval on a one sample proportion.arrow_forwardFind the critical value for a 94% confidence interval when the sample size is 51 and the population standard deviation is known.arrow_forwardA 99% confidence interval is smaller in size than a 95% confidence interval because it is more accurate. True Falsearrow_forward
- Does the confidence interval not change for population proportion vs sample proportionarrow_forwardWhat is a confidence interval and how do we calculate it?arrow_forwardTake an SRS where n equals 50 and calculate at 95% confidence interval. If we took a different SRS of the same size from the same population, and calculate a confidence interval with the same level of confidence, the margin of error would stay the same. Is this statement True or False and explain why it is true or false.arrow_forward
- What is the effect on the size of the confidence interval if a T score is used instead of a Z score? OIt has no effect on the interval. OIt causes the interval to be bigger. OIt causes the interval to be smaller.arrow_forwardWhy do we use a t-distribution to compute confidence intervals for population means?arrow_forwardWhat is the minimum required sample size to make a 96% confidence interval for a population mean if the margin of error is to be 2 inches and the standard deviation is thought to be about 12 inches?arrow_forward
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