7. Bob draws a simple random sample from an original population. The sample size is n = 51, the samplemean turns out to be = 78, and the sample standard deviation turns out to be s = 14. Find the 95%confidence interval for the population mean u.A. (74.062, 81.938)B. (74.062, 83.948)C. (74.062, 85.958)D. (74.062, 87.968)

Given, Sample size(n)=51 (large sample)sample standard deviation(s)=14sample mean(x¯)=78at…

Answered: 7. Bob draws a simple random sample…

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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B. Samples of size n were randomly selected from the population. The mean and the standard deviations of the population are given below. In each case, find the mean and the variance of the sampling distribution of the means. μ = 3; o = 1.3 1. n = 2; 2. n = 5; μ = 2.75; o = 3.5 3. n = 8; μ = 32; o = 7.9 n = 6; μ = 4.3; o = 1.9 4. 5. n = 2; μ = 1.5; o = 2
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