Asked by charo
In your sample of 23 art students and 30 economics students, the mean amount that a group of economics students like statistics is 26, while the mean amount that a group of art students like statistics is 15. The variance in the economic group is 4.2, while the variance in the art group is 10.3.
Calculate your test statistic for finding whether the groups differ in how much they like statistics.
Calculate your test statistic for finding whether the groups differ in how much they like statistics.
Answers
Answered by
PsyDAG
Z = (mean1 - mean2)/standard error (SE) of difference between means
SEdiff = ā(SEmean1^2 + SEmean2^2)
SEm = SD/ān
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 that they will differ.
SEdiff = ā(SEmean1^2 + SEmean2^2)
SEm = SD/ān
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 that they will differ.
Answered by
Anonymous
15.19
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