standard deviations: Sample 1 Sample 2 17 12 n2 X2 X1 5.4 7.9 || S1 = 3.4 S2 4.8 variances, the a. Assuming equal Ho: (µ1 – µz) = 0 against Ha: (1 – Mz) # 0 using conduct test a = .05. b. Find and interpret the 95% confidence interval for (m - uz).

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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9.12 Independent random samples selected from two normal
populations produced the following sample means and
standard deviations:
Sample 1
Sample 2
n1
= 17
n2
=
12
x₁ = 5.4
x2 = 7.9
$1
= 3.4
$2 4.8
=
variances, conduct the test
a. Assuming equal
Ho: (μ₁ −μ₂)
=
0 against Ha: (μ₁ −μ₂) ‡ 0 using
-
α - .05.
b. Find and interpret the 95% confidence interval for
(μ₁ - M₂).
Transcribed Image Text:9.12 Independent random samples selected from two normal populations produced the following sample means and standard deviations: Sample 1 Sample 2 n1 = 17 n2 = 12 x₁ = 5.4 x2 = 7.9 $1 = 3.4 $2 4.8 = variances, conduct the test a. Assuming equal Ho: (μ₁ −μ₂) = 0 against Ha: (μ₁ −μ₂) ‡ 0 using - α - .05. b. Find and interpret the 95% confidence interval for (μ₁ - M₂).
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