Consider a population of 250 with a mean of 50 and a standard deviation equal to 25. What is the probability of obtaining a sample mean of 52 or less from a sample of 45?
Consider a population of 250 with a mean of 50 and a standard deviation equal to 25. What is the probability of obtaining a sample mean of 52 or less from a sample of 45?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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Transcribed Image Text:Consider a population of 250 with a mean of 50 and a standard deviation equal to 25. What is the probability of
obtaining a sample mean of 52 or less from a sample of 45?
Click here to view page 1 of the Cumulative Standardized Normal Table.
Click here to view page 2 of the Cumulative Standardized Normal Table.
What is the probability of obtaining a sample mean of 52 or less from a sample of 45?
P(x≤52) =
(Round to four decimal places as needed.)
Expert Solution

Step 1: We write the given information in this step.
Solution-:
Given:
Let, X= be the random variable
We want to find,
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