11-1₂ = do 2= (1-₂) - do √o²/n₁ + 0₂/1₂ 2 known 01 and A random sample of size n₁ = 25, taken from a normal population with a standard deviation o₁= 5, has a mean x₁ 5, has a mean x₁ = 80. A second random sample of size n₂ = 36, taken from a different normal population with a standard. deviation ₂ = 3, has a mean x₂ = 75. Using 5% level of significance, check whether ₁2
11-1₂ = do 2= (1-₂) - do √o²/n₁ + 0₂/1₂ 2 known 01 and A random sample of size n₁ = 25, taken from a normal population with a standard deviation o₁= 5, has a mean x₁ 5, has a mean x₁ = 80. A second random sample of size n₂ = 36, taken from a different normal population with a standard. deviation ₂ = 3, has a mean x₂ = 75. Using 5% level of significance, check whether ₁2
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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Transcribed Image Text:(1-₂) - do
√oi/n₁ + 0₂/1₂
01 and 2 known
Reject Ho: ₁ > 1₂
2=
11-1₂ = do
A random sample of size n₁ = 25, taken from a normal population with a
standard deviation o₁= 5, has a mean x₁ = 80. A second random sample
of size n₂ = 36, taken from a different normal population with a standard
deviation ₂ = 3, has a mean x₂ = 75. Using 5% level of significance,
check whether ₁2
(1₂) do
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