A 99% confidence interval for 1 2 using the sample results x 1 = 501, s
Question:
A 99% confidence interval for μ1 − μ2 using the sample results x̅1 = 501, s1 = 115, n1 = 400 and x̅2 = 469, s2 = 96, n2 = 200
Use the t-distribution to find a confidence interval for a difference in means μ1 − μ2 given the relevant sample results. Give the best estimate for μ1 − μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed.
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For a confidence interval for 1 2 using the tdistribution we use The smaller sample size is 20...View the full answer
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Related Book For
Statistics Unlocking The Power Of Data
ISBN: 9780470601877
1st Edition
Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
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