Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x₁ = 11, S₁ = 2.5, n₁ = 15, x₂ = 14, s₂ = 2.2, n₂ = 15 a. Two-tailed test, α = 0.10 b. 90% confidence interval Ha: H1
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x₁ = 11, S₁ = 2.5, n₁ = 15, x₂ = 14, s₂ = 2.2, n₂ = 15 a. Two-tailed test, α = 0.10 b. 90% confidence interval Ha: H1
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:Provided below are summary statistics for independent simple random samples from two populations. Use the
pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified
confidence interval.
x₁ = 11, S₁ = 2.5, n₁ = 15, x₂ = 14, s₂ = 2.2, n₂ = 15
a. Two-tailed test, α = 0.10
b. 90% confidence interval
Ha: H1 H2
Next, compute the test statistic.
t= (Round to three decimal places as needed.)
Now determine the critical values.
±ta/2= ±
What is the conclusion of the hypothesis test?
Since the test statistic
b. The 90% confidence interval is from to
(Round to three decimal places as needed.)
(Round to three decimal places as needed.)
in the rejection region,
Ha: H1 = H₂
Ho.
Time Remaining: 01:35:24
Next
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