(b) Construct a 95% confidence interval about μ if the sample size, n, is 51. Lower bound:Upper bound: A simple random sample of size n is drawn. The sample mean, \( \bar{x} \), is found to be 19.4, and the sample standard deviation, \( s \), is found to be 4.7. Click the icon to view the table of areas under the t-distribution.---(a) Construct a 95% confidence interval about \( \mu \) if the sample size, \( n \), is 35.- Lower bound: 17.79- Upper bound: 21.02(Use ascending order. Round to two decimal places as needed.)---(b) Construct a 95% confidence interval about \( \mu \) if the sample size, \( n \), is 51.- Lower bound: [ ]- Upper bound: [ ](Use ascending order. Round to two decimal places as needed.)

GivenMean(x)=19.4standard deviation(s)=4.7

Answered: A simple random sample of size n is…

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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INFERENCE FOR SINGLE POPULATION PROPORTION (CONFIDENCE INTERVAL) 11. A random sample of 400 electronic components manufactured by a certain process is tested, and 30 are found to be defective. i. Let p be the proportion of defective components. Find a 95% confidence interval for p. ii. How many components must be sampled so that the 95% confidence interval will specify the proportion of defective components to within ±0.02? Source: Statistics for Engineers and Scientists, 3rd Edition, William, C. Navidi.
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