Mathematical Statistics And Data Analysis
9th Edition
ISBN: 9788131519547
Author: RICE
Publisher: Cengage Learning
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Chapter 1.8, Problem 44P
To determine
Find the number of ways can 12 people be divided into three groups of 4 for an evening of bridge and also find the number of possible ways can this be done if the 12 consist of six pairs of partners.
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A well-known company predominantly makes flat pack furniture for students. Variability with the automated machinery means the wood components are cut with a standard deviation in length of 0.45 mm. After they are cut the components are measured. If their length is more than 1.2 mm from the required length, the components are rejected.
a) Calculate the percentage of components that get rejected.
b) In a manufacturing run of 1000 units, how many are expected to be rejected?
c) The company wishes to install more accurate equipment in order to reduce the rejection rate by one-half, using the same ±1.2mm rejection criterion. Calculate the maximum acceptable standard deviation of the new process.
5. Let X and Y be independent random variables and let the superscripts denote
symmetrization (recall Sect. 3.6). Show that
(X + Y) X+ys.
8. Suppose that the moments of the random variable X are constant, that is, suppose
that EX" =c for all n ≥ 1, for some constant c. Find the distribution of X.
Chapter 1 Solutions
Mathematical Statistics And Data Analysis
Ch. 1.8 - Prob. 1PCh. 1.8 - Prob. 2PCh. 1.8 - Prob. 3PCh. 1.8 - Prob. 4PCh. 1.8 - Prob. 5PCh. 1.8 - Prob. 6PCh. 1.8 - Prob. 7PCh. 1.8 - Prob. 8PCh. 1.8 - Prob. 9PCh. 1.8 - Prob. 10P
Ch. 1.8 - Prob. 11PCh. 1.8 - Prob. 12PCh. 1.8 - Prob. 13PCh. 1.8 - Prob. 14PCh. 1.8 - Prob. 15PCh. 1.8 - Prob. 16PCh. 1.8 - Prob. 17PCh. 1.8 - Prob. 18PCh. 1.8 - Prob. 19PCh. 1.8 - Prob. 20PCh. 1.8 - Prob. 21PCh. 1.8 - Prob. 22PCh. 1.8 - Prob. 23PCh. 1.8 - Prob. 24PCh. 1.8 - Prob. 25PCh. 1.8 - Prob. 26PCh. 1.8 - Prob. 27PCh. 1.8 - Prob. 28PCh. 1.8 - Prob. 29PCh. 1.8 - Prob. 30PCh. 1.8 - Prob. 31PCh. 1.8 - Prob. 32PCh. 1.8 - Prob. 33PCh. 1.8 - Prob. 34PCh. 1.8 - Prob. 35PCh. 1.8 - Prob. 36PCh. 1.8 - Prob. 37PCh. 1.8 - Prob. 38PCh. 1.8 - Prob. 39PCh. 1.8 - Prob. 40PCh. 1.8 - Prob. 41PCh. 1.8 - Prob. 42PCh. 1.8 - Prob. 43PCh. 1.8 - Prob. 44PCh. 1.8 - Prob. 45PCh. 1.8 - Prob. 46PCh. 1.8 - Prob. 47PCh. 1.8 - Prob. 48PCh. 1.8 - Prob. 49PCh. 1.8 - Prob. 50PCh. 1.8 - Prob. 51PCh. 1.8 - Prob. 52PCh. 1.8 - Prob. 53PCh. 1.8 - Prob. 54PCh. 1.8 - Prob. 55PCh. 1.8 - Prob. 56PCh. 1.8 - Prob. 57PCh. 1.8 - Prob. 59PCh. 1.8 - Prob. 60PCh. 1.8 - Prob. 61PCh. 1.8 - Prob. 62PCh. 1.8 - Prob. 63PCh. 1.8 - Prob. 64PCh. 1.8 - Prob. 65PCh. 1.8 - Prob. 66PCh. 1.8 - Prob. 67PCh. 1.8 - Prob. 68PCh. 1.8 - Prob. 69PCh. 1.8 - Prob. 70PCh. 1.8 - Prob. 71PCh. 1.8 - Prob. 72PCh. 1.8 - Prob. 73PCh. 1.8 - Prob. 74PCh. 1.8 - Prob. 75PCh. 1.8 - Prob. 77PCh. 1.8 - Prob. 78PCh. 1.8 - Prob. 79PCh. 1.8 - Prob. 80P
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