with the sample mean X1=42â€‹,
and a sample standard deviation of S1=5â€‹,
and you have an independent sample of n2=13
from another population with a sample mean of X2=31â€‹,
and the sample standard deviation S2=7.
Construct a 99â€‹%
confidence interval estimate of the population mean difference between Î¼1 and Î¼2.
â€‹(Type an integer or decimal rounded to two decimal places asâ€‹ needed.)
excel ability needed, data analysis ability needed
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