2. Two independent random samples from their respective populations of interest are selected. Assume the populations are normally distributed; assume that = 75, s² = 25, and n = 20 characterize the first sample; assume that y 36, and m = 22 characterize the second sample; and assume of o2 are unknown. 72, s = (a) We wish to find a 98% confidence interval for μ₁ - conditions met? If not, explain why. 2. Are all (b) Find the t critical number associated with a central 98% con- fidence interval. Hint: You may need a calculator to find the critical number. (c) Construct a central 98% confidence interval for μ₁ - μ2.
2. Two independent random samples from their respective populations of interest are selected. Assume the populations are normally distributed; assume that = 75, s² = 25, and n = 20 characterize the first sample; assume that y 36, and m = 22 characterize the second sample; and assume of o2 are unknown. 72, s = (a) We wish to find a 98% confidence interval for μ₁ - conditions met? If not, explain why. 2. Are all (b) Find the t critical number associated with a central 98% con- fidence interval. Hint: You may need a calculator to find the critical number. (c) Construct a central 98% confidence interval for μ₁ - μ2.
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:2. Two independent random samples from their respective populations of
interest are selected. Assume the populations are normally distributed;
assume that x = 75, s² = 25, and n = 20 characterize the first sample;
assume that y 72, s²2 36, and m = 22 characterize the second
sample; and assume o² o2 are unknown.
=
-
(a) We wish to find a 98% confidence interval for μ₁ −μ2. Are all
conditions met? If not, explain why.
(b) Find the t critical number associated with a central 98% con-
fidence interval. Hint: You may need a calculator to find the
critical number.
(c) Construct a central 98% confidence interval for µ₁ − μ₂.
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