Alpha = .02
Am I using the 2-sample T test or ANOVA?
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 2-sample t test or do I use ANOVA?
Please show me all steps to get to the answer.
2 answers
Calculate Z = (μ1-μ2)/Standard Error (SE) for difference between means.
SE Difference = sq. rt. of (SE1^2 + SE2^2)
SE = Standard Deviation/Sq rt of n-1
Since it is two-tailed, look for Z < .01 to reject null hypothesis.
I hope this helps. Thanks for asking.
SE Difference = sq. rt. of (SE1^2 + SE2^2)
SE = Standard Deviation/Sq rt of n-1
Since it is two-tailed, look for Z < .01 to reject null hypothesis.
I hope this helps. Thanks for asking.
1 answer