Wednesday

March 4, 2015

March 4, 2015

Posted by **Gummy** on Saturday, April 6, 2013 at 1:08pm.

a. Using the 5% level of significance, test whether

the two means are different.

b. Assume the p-value for this test is .0439.

c. If the level of significant used was 10% (or 1%),

would the Ho be rejected?

- Statistics -
**PsyDAG**, Saturday, April 6, 2013 at 2:54pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

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