In order to compare the means of two populations, independent random samples of 144 observations are selected from each population with the following results. Sample 1 Sample 2 xbar1= 7,123 xbar2 =...


In order to compare the means of two populations, independent random samples of 144 observations are selected from each population with the following results.











Sample 1Sample 2








xbar1= 7,123xbar2 = 6,957








s1 = 175s2 = 225



Use a 95% confidence interval to estimate the difference between the population means (μ1−μ2). Interpret the confidence interval.



Jun 02, 2022
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