Posted by Jen on Thursday, August 20, 2009 at 12:33am.
test the claim that μ1 = μ2 Two samples are randomly selected from normal populations. The sample statistics are
n1=11,x(bar)=4.8, s1=.76
n2=18, x(bar)=5.2, s2=.51
Assume that σ1 ≠ σ2
Use alpha = .02
I am not sure if this is a 2sample t test or do I use ANOVA?
Please show me all steps to get to the answer.

Statistics  Jen, Thursday, August 20, 2009 at 12:35am
Alpha = .02
Am I using the 2sample T test or ANOVA?

Statistics  PsyDAG, Thursday, August 20, 2009 at 11:52am
Calculate Z = (μ1μ2)/Standard Error (SE) for difference between means.
SE Difference = sq. rt. of (SE1^2 + SE2^2)
SE = Standard Deviation/Sq rt of n1
Since it is twotailed, look for Z < .01 to reject null hypothesis.
I hope this helps. Thanks for asking.
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