Thursday

January 29, 2015

January 29, 2015

Posted by **Janice** on Wednesday, July 10, 2013 at 3:02am.

a) Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with a a=.01

b) Did this sample of females consume significantly fewer energy drinks than the overall population average? Use a one-tailed test with a a=.01

- statistics -
**PsyDAG**, Wednesday, July 10, 2013 at 1:44pmZ = (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 for each Z score.

**Answer this Question**

**Related Questions**

math - *The value of the z-score in a hypothesis test is influenced by a variety...

Statistics - The Education Testing Service conducted a study to investigate ...

statistics - A certain geneticist is interested in the proportion of males and ...

statistics - In an extensive study involving thousands of British children, ...

STAT - Functional foods are those containing nutritional supplements in addition...

statistics - A researcher has observed independent samples of females and males...

statistics - A researcher has observed independent samples of females and males...

business statistics - A researcher has observed independent samples of females ...

Another Commerical - Ive done one on one of the prescription drugs, and I also ...

Math 9 - My family went to starbucks. We ordered 3 drinks. My daughter's drink ...