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 2-sample 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 2-sample T test or ANOVA?

- Statistics -
**PsyDAG**, Thursday, August 20, 2009 at 11:52am
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.

## Answer This Question

## Related Questions

- Statistics Hypothsis testing - Am I using the 2-sample T test or ANOVA? Please ...
- statistics - Assume that a procedure yields a binomial distribution with n ...
- Calculus - Calculate μ and σ, where σ is the standard deviation, ...
- Calculus - Calculate μ and σ, where σ is the standard deviation, ...
- statistics - A researcher was interested in assessing the effectiveness of the ...
- statistics - A researcher was interested in assessing the effectiveness of the ...
- statistics - A researcher was interested in assessing the effectiveness of the ...
- statistics - Suppose x has a normal distribution with mean μ = 35 and ...
- statistics - Q. The MBA department is concerned that dual degree students may be...
- Stor - Here is a simple way to create a random variable X that has mean μ ...

More Related Questions