1. Let c=0.90, o=3.6, and E=1.6. What is theminimum sample size, n, needed to estimateμ?2. In a random sample of 40 refrigerators, themean repair cost was $175.00. The populationstandard deviation, o=$18.25. Construct a95% confidence interval for the populationmean repair cost.

1) Answer:- Given, Confidence level, c = 0.90 So, Significance level, α = (1-c) = (1-0.90) = 0.10…

Answered: 1. Let c=0.90, o=3.6, and E=1.6. What…

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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Calculate the smallest sample size required to estimate the population mean under the specifications shown below. a. confidence level 90%, σ=19, and e=6 b. confidence level 95%, σ=23, and e=0.7 c. confidence level 98%, σ=0.5, and e=1 d. confidence level 99%, σ=1.4, and e=0.6 e. confidence level 98%, σ=5, and e=
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1. Let c=0.90, o=3.6, and E=1.6. What is the minimum sample size, n, needed to estimate μ?