Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point estimate for μ,the margin of error, and the confidence interval. Assume the results come from a random sample from a population that isapproximately normally distributed.A 90% confidence interval for using the sample results x = 138.0, s = 51.3, and n = 50Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence intervalto two decimal places.point estimate = imargin of error = iThe 90% confidence interval is ito i

Given sample results: Sample mean () = 138.0 Sample standard deviation (s) = 51.3 Sample size (n) =…

Answered: Use the t-distribution to find a…

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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We provide a sample mean, sample size, sample standard deviation, and confidence level. a. use the one-mean t-interval procedure to find a confidence interval for the mean of the population from which the sample was drawn. b. obtain the margin of error by taking half the length of the confidence interval. c. obtain the margin of error by using the formula tα/2•s/n. x = 55, n = 16, s = 5, confidence level = 99%
We provide a sample mean, sample size, sample standard deviation, and confidence level. a. use the one-mean t-interval procedure to find a confidence interval for the mean of the population from which the sample was drawn. b. obtain the margin of error by taking half the length of the confidence interval. c. obtain the margin of error by using the formula tα/2•s/√n. x = 50, n = 16, s = 5, confidence level = 99%
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Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
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Use the confidence interval to find the margin of error and the sample mean. (0.196,0.300) The margin of error is
We provide a sample mean, sample size, sample standard deviation, and confidence level. a. use the one-mean t-interval procedure to find a confidence interval for the mean of the population from which the sample was drawn. b. obtain the margin of error by taking half the length of the confidence interval. c. obtain the margin of error by using the formula tα/2•s/√n. x = 30, n = 25, s = 4, confidence level = 90%
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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (2.8,4.6) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is The sample mean is
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