
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Explain which would result in a wider large-sample confidence interval for p: a
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- Provide an explanation as to why it would be very unlikely that a different sample of size n=30 would produce the same confidence interval.arrow_forwardSuppose a 90 percent confidence interval to estimate a population proportion was calculated from a sample proportion of 18 percent and a margin of error of 4 percent. What is the width of the confidence interval?arrow_forwardFor a 95% confidence interval and n=21 give the Chi-squared right value.arrow_forward
- Suppose we know that a confidence interval for a population proportion is (0.105,0.355), with a sample proportion of p̂=0.23. What is the margin of error?arrow_forwardFor a sample with a mean of 10, a std of 5 and an n of 30, what is the lower bound of the 95% confidence interval?arrow_forwardSuppose you compute a confidence interval with a sample size of 37. What will happen to the confidence interval if the sample size increases to 70?arrow_forward
- A random sample of high school seniors were asked whether they were applying for college. The resulting confidence interval for the proportion of students applying for college is (0.65,0.69). What is the margin of error?arrow_forwardWhat effect does increasing the sample size have on the length of a Confidence Interval (CI)? Specifically, what happens to the distance between the Left-Hand End Point and the Right-Hand End Point of the CI if everything else remains the same? EXPLAIN YOUR ANSWERarrow_forwardA 90% confidence interval for p=0.37 and n=475arrow_forward
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