Question
In testing whether the means of two normal populations are equal, summary statistics computed for two independent samples are as follows: n 1= 25, n
In testing whether the means of two normal populations are equal, summary statistics computed for two independent samples are as follows:
n1= 25,n2= 30
Sample means Xbar1= 7.30,Xbar2= 6.80
s1= 1.05,s2= 1.20
Assume that the population variances are equal. Then the standard error of the sampling distribution of the sample mean differenceis equal to:
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Econometric Analysis
Authors: William H. Greene
5th Edition
130661899, 978-0130661890
