- The amount of a particular impurity in a batch of a certain chemical product is a random variable with mean value 4.0 g and standard deviation 1.5 g. If 100 batches are independently prepared, what is the (approximate) probability that the sample average amount of impurity X is between 3.5 and 3.8 g?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Standard Normal Curve areas:
Ф(0.13)
0.05, (2) = .9772, and to.05,25 = 1.708.
0.5910, (0.33) = 0.6293, (1.645)
%3D
%3D
Transcribed Image Text:Standard Normal Curve areas: Ф(0.13) 0.05, (2) = .9772, and to.05,25 = 1.708. 0.5910, (0.33) = 0.6293, (1.645) %3D %3D
- The amount of a particular impurity in a batch of a certain chemical product
is a random variable with mean value 4.0 g and standard deviation 1.5 g. If
100 batches are independently prepared, what is the (approximate) probability
that the sample average amount of impurity X is between 3.5 and 3.8 g?
Transcribed Image Text:- The amount of a particular impurity in a batch of a certain chemical product is a random variable with mean value 4.0 g and standard deviation 1.5 g. If 100 batches are independently prepared, what is the (approximate) probability that the sample average amount of impurity X is between 3.5 and 3.8 g?
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