A sample of size n = 57 is drawn from a normal population. The sample mean is x = 58.5 and sample standard deviations = 9.5.Part: 0 / 2Part 1 of 2(a) Construct a 99.8% confidence interval for the population mean, μ. Round the answers to one decimal place.<μ<The 99.8% confidence interval isŚXolo11.⁰

The population is normally distributed.Sample size, Sample mean, Sample standard deviation, The…

Answered: A sample of size n = 57 is drawn from 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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Overweight Men For a random sample of 55 overweight men, the mean of the number of pounds that they were overweight was 31. The standard deviation of the population is 3.9 pounds. Use a graphing calculator and round the final answers to one decimal place. Part 1 of 4 The best point estimate of the mean is 31 pounds. Part: 1 / 4 Part 2 of 4 Find the 90% confidence interval of the mean of these pounds. <μ< X
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Breaking Strength of Cable A special cable has a breaking strength of 800 pounds. The standard deviation of the population is 12 pounds. A researcher selects a sample of 23 cables and finds that the average breaking strength is 793 pounds. Can he reject the claim that the breaking strength is 800 pounds? Use the P-value method with a 0.05 level of significance. Assume that the variable is normally distributed. Use a graphing calculator. Part: 0/4 Part 1 of 4 (a) State the hypotheses and Identify the claim. Ho (Choose one) H₂: (Choose one) This hypothesis test is a (Choose one) test. 000-0 H G 民留〗f g E
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Exercise 08.02 Algo (Population Mean: Sigma Known) A simple random sample of 90 items from a population with o =6 resulted in a sample mean of 36. If required, round your answers to two decimal places. a. Provide a 90% confidence interval for the population mean. to b. Provide a 95% confidence interval for the population mean. to C. Provide a 99% confidence interval for the population mean. to 0- Icon Key Exercise 08.02 Algo (Population Mean: Sigma Known) S 立

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