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Author Question: Independent random samples selected from two normal populations produced the following sample means ... (Read 52 times)

Lisaclaire

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on: Feb 14, 2020

Question 1

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
1 = 7,1232 = 6,957
s1 = 175s2 = 225

Use a 95% confidence interval to estimate the difference between the population means Interpret the confidence interval.

Question 2

Independent random samples selected from two normal populations produced the following sample means and standard deviations.

Sample 1Sample 2
n1 = 14n2 = 11
1 = 7.12 = 8.4
s1 = 2.3s2 = 2.9

Find and interpret the 95% confidence interval for
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by Lisaclaire on Feb 14, 2020

josephsuarez

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Reply #1 on: Feb 14, 2020
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Lisaclaire

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Reply 2 on: Feb 14, 2020
Great answer, keep it coming :)

bblaney

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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