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

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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.
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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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