3.The number of flaws per square yard in a type of carpet material varies, with mean 1.6 flaws per square yard and standard deviation 1.2 flaws per square yard. The distribution is not normal--in fact, it is discrete. An inspector studies 200 random square yards of the material, records the number of flaws found in each square yard, and calculates the mean number of flaws per square yard inspected. Use the central limit theorem to find the approximate probability that the mean number of flaws exceeds 2 per square yard.
3.The number of flaws per square yard in a type of carpet material varies, with mean 1.6 flaws per square yard and standard deviation 1.2 flaws per square yard. The distribution is not normal--in fact, it is discrete. An inspector studies 200 random square yards of the material, records the number of flaws found in each square yard, and calculates the mean number of flaws per square yard inspected. Use the central limit theorem to find the approximate probability that the mean number of flaws exceeds 2 per square yard.
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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Transcribed Image Text:3.The number of flaws per square yard in a type of carpet material varies, with mean 1.6
flaws per square yard and standard deviation 1.2 flaws per square yard. The distribution is
not normal--in fact, it is discrete. An inspector studies 200 random square yards of the
material, records the number of flaws found in each square yard, and calculates the mean
number of flaws per square yard inspected. Use the central limit theorem to find the
approximate probability that the mean number of flaws exceeds 2 per square yard.
4.Suppose the grades in a finite mathematics class are Normally distributed with a mean of
75 and a standard deviation of 5. What is the probability that the average grade for 50
randomly selected students was at least 83?
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