Question 3 3. We get two random samples from two normal populations. The first sample yields 5.5, 8.7, 6.8, 8.9, 7.9, 8.5, and the second sample yields
Question 3 3. We get two random samples from two normal populations. The first sample yields 5.5, 8.7, 6.8, 8.9, 7.9, 8.5, and the second sample yields
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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Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Question 3
3. We get two random samples from two normal populations. The first sample yields
5.5, 8.7, 6.8, 8.9, 7.9, 8.5,
and the second sample yields
15.8, 14.3, 17.9,
15.6, 14.7.
(a) Construct a 99% confidence interval for the ratio of the two population variances if
(i) you have no information on the two population means
(ii) you know that the mean of the first population is 8.5
(iii) you know that the first mean is 8.5 and the second mean is equal to 15.5
(b) Compare, and interpret the results you have obtained. In particular, in which of these three different cases can you
conclude that the two variances are equal? Carefully describe your reasoning.
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