Question

Two random samples are selected from two independent populations. A summary of the sample sizes, sample means, and sample standard deviations is given below: n1 = 47, x̄1 = 55.2, s1 = 5.7, n2 = 42, x̄2 = 74.5, s2 = 10, Find a 93% confidence interval for the difference μ1-μ2 of the means, assuming equal population variances. Confidence Interval = ___________

Name: two random samples are selected from two independent populations a summary of the samples sizes sample means and sample standard deviations is given below n1 47 x 1 552 s1 57 n2 42 x 2 745 s 37756
Uploaded: 2023-07-29T16:24:51-08:00
Duration: 5 min 35 s
Channel: Danielle Fairburn
Description: two random samples are selected from two independent populations a summary of the samples sizes sample means and sample standard deviations is given below n1 47 x 1 552 s1 57 n2 42 x 2 745 s 37756

          Two random samples are selected from two independent populations. A summary of the sample sizes, sample means, and sample standard deviations is given below:
n1 = 47, x̄1 = 55.2, s1 = 5.7,
n2 = 42, x̄2 = 74.5, s2 = 10,
Find a 93% confidence interval for the difference μ1-μ2 of the means, assuming equal population variances.
Confidence Interval = ___________

Added by Gerald W.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Danielle Fairburn

07/29/2023

Step 1

n1 = 47, x̄1 = 55.2, s1 = 5.7 n2 = 42, x̄2 = 74.5, s2 = 10 Show more…

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Two random samples are selected from two independent populations. A summary of the sample sizes, sample means, and sample standard deviations is given below: n1 = 47, x̄1 = 55.2, s1 = 5.7, n2 = 42, x̄2 = 74.5, s2 = 10, Find a 93% confidence interval for the difference μ1-μ2 of the means, assuming equal population variances. Confidence Interval = ___________