19.Consider a population of size N 12, 100 with a mean of u =Compute the following z-values for either the population distribution or the sampling distributions of* with given sample size. Round solutions to two decimal places, if necessary.185 and standard deviation of o = 18Suppose a random single observations is selected from the population. Calculate the z-value thatcorresponds to x = 181.-0.22Suppose a random single observations is selected from the population. Calculate the z-value thatcorresponds to x = 188.%3DZ = 0.17Suppose a random sample of 90 observations is selected from the population. Calculate the z-value thatcorresponds to a =180.z =|-30.56Suppose a random sample of 91 observations is selected from the population. Calculate the z-value thatcorresponds to = 184.Z=-6.11%3DHint: Recall that the formula to calculate a z-score for a population distribution is z =However, when working with a sampling distribution of a sample mean, z =

GivenPopulation size(N)=12100Mean(μ)=185standard deviation(σ)=18

Answered: Consider a population of size N = 12,…

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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The ages of a group of 156 randomly selected adult females have a standard deviation of 17.4 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let σ=17.4 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 98% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population?
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