1. A simple random sample of heights of basketball players in the NBA is obtained, and thepopulation has a distribution that is approximately normal. The sample statistics are n= 16, ã=77.9 inches; and s= 3.50 inches. Determine the critical value of t and the margin of error, andthe construct the 95% confidence interval estimate of the population mean.Critical Value of t:E =95% Confidence Interval:2. A simple random sample of men is obtained, and the elbow-to-fingertip length of eachman is measured. the population of those lengths has a distribution that is normal. The sample.statistics are n= 35, = 14.5 inches, and s= 0.7 inch. Determine the critical value of t andthe margin of error, and then construct the 95% confidence interval estimate of the populationmean.InteCritical Value of t:E =meCritical95% Confidence Interval:3. A simple random sample of epicenter depths of 51 earthquakes has a mean of 9.808kilometers (km) and a standard deviation of 5.013 km. Determine the critical value oft and themargin of error, and then construct the 95% confidence interval estimate of the mean epicenterdepth of depth of all earthquakes.E =Value of t:

As per our guidelines we are suppose to answer only one question. Given,sample size(n)=16sample…

Answered: 1. A simple random sample of heights of…

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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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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Construct the confidence interval for the population mean μ. c=0.90, x=16.7, σ=7.0, and n=45
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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 = 30, n = 25, s = 4, confidence level = 90%
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 = 25, n = 36, s = 3, confidence level = 95%
If X=80, σ=11,and n=62,construct a 95% confidence interval estimate of the population mean, μ. __≤μ≤__
At a charter high school, the average GPA of a high school senior is known to be normally distributed. After a sample of 27 seniors is taken, the average GPA is found to be 2.85 and the sample variance is determined to be 0.16. Find a 95% confidence interval for the population mean GPA. a. 2.5615 to 2.8585 b. 2.6358 to 3.0642 c. 2.6917 to 3.0083 d. 2.5167 to 2.9033

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