A population of values has a normal distribution with μ=94.9 and σ=63. You intend to draw a random sample of size n=189. Please show your answers as numbers accurate to at least 5 decimal places. Find the probability that a single randomly selected value is greater than 93.1. Find the probability that a sample of size n=189 is randomly selected with a mean greater than 93.1
A population of values has a normal distribution with μ=94.9 and σ=63. You intend to draw a random sample of size n=189. Please show your answers as numbers accurate to at least 5 decimal places. Find the probability that a single randomly selected value is greater than 93.1. Find the probability that a sample of size n=189 is randomly selected with a mean greater than 93.1
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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Question
A population of values has a
Find the
Find the probability that a sample of size n=189 is randomly selected with a mean greater than 93.1
Expert Solution
Step 1
Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.
Thus, the z-score of that random variable X is z = (X – µ)/σ.
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