What are the mean and standard deviation of the sampling distribution of x? ?x = ?x = Describe the shape of the sampling distribution of x. The shape of the sampling distribution of x is . (b) What is the approximate probability
What are the mean and standard deviation of the sampling distribution of x? ?x = ?x = Describe the shape of the sampling distribution of x. The shape of the sampling distribution of x is . (b) What is the approximate probability
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
Suppose that a random sample of size 64 is to be selected from a population with mean 30 and standard deviation 7.
(a)
What are the mean and standard deviation of the sampling distribution of
x?
?x
=
?x
=Describe the shape of the sampling distribution of
x.
The shape of the sampling distribution of
x
is .(b)
What is the approximate probability that
x
will be within 0.5 of the population mean ?? (Round your answer to four decimal places.)(c)
What is the approximate probability that
x
will differ from ? by more than 0.9? (Round your answer to four decimal places.)Expert Solution
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