A confidence interval program for a population proportion p = 0.5 produced the graph below. Although most confidence intervals cover the true value p = 0.5, some do not.0.60.81.030201000.00.20.4 The coverage rate (confidence level) of these confidence intervals is:O A: 0.950OB: 0.960OC: 0.825OD: 0.940O E: 0.925

Confidence interval is computed to test the statistical claim.

Answered: A confidence interval program for 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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If n = 15, ¯xx¯ = 36, and s = 12, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.
When a population has less variability, for the same margin of error and confidence level, the confidence interval becomes a. larger b. smaller c. of unchanged size
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.
If n=17, (x-bar)=48, and s=2, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.
Determine whether the following statement is true or false. To construct a confidence interval about the mean, the population from whlch the sample is drawn must be approximately normal. This statement is
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If you are given summary statistics for a sample and want to construct a confidence interval, this can be done through the Probability Calculator in Geogebra, or Stat>Basic Stats>1-sample Z in Minitab(web). For Minitab (web), see Tutorials in D2L. For Geogebra, follow the directions below: Open it and click the "Statistics" tab just above the graph. For a confidence interval for a population mean, with unknown o, click the drop-down menu near the top (default is "Z Test of a Mean") and choose "T Estimate of a Mean." Enter the confidence level (in decimal form), sample mean, sample standard deviation, and sample size. We'll use a sample with = 65.17, s = 3.654, n = 26. Based on this sample data, a 95% confidence interval for the population mean is: <μ< The margin of error for this 95% confidence interval is Based on this sample data, a 99% confidence interval for the population mean is: <μ< The margin of error for this 99% confidence interval is -
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A confidence interval program for a population proportion p=0.5 produced the graph below. Although most confidence intervals cover the true value p = 0.5, some do not.