Assume that you have a sample of n_(1)=9, with the sample mean ar{x} _(1)=47, and a sample standard deviation of S_(1)=6, and you have an independent sample of n_(2)=12 from another population with a
sample mean of ar{x} _(2)=32, and the sample standard deviation S_(2)=8. Construct a 95% confidence interval estimate of the population mean difference between mu _(1) and mu _(2). Assume that the two
population variances are equal.
6<=mu _(1)-mu _(2)<=64
(Round to two decimal places as needed.)
paring Means of Two
Question 3,10.1.4-T
HW Score:47.96%,47.96 of 100 points Points:0 of 15
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Assume that you have a sample of n, =9, with the sample mean X, =47, and a sample standard deviation of S, = 6, and you have an independent sample of nz = 12 from another population with a sample mean of X,=32, and the sample standard deviation S =8.Construct a 95% confidence interval estimate of the population mean difference between and 2.Assume that the two population variances are equal.
-254] (Round to two decimal places as needed.)
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