Saturday

April 18, 2015

April 18, 2015

Posted by **Anonymous** on Tuesday, June 12, 2012 at 8:57pm.

- Statistics -
**PsyDAG**, Wednesday, June 13, 2012 at 12:38pmAcceptance or rejection of the null hypothesis depends on what level of significance you are using (e.g., P≤.05, P≤.01) and whether you are using a one-tailed or two-tailed test. If the Z score has that probability or less, reject the null hypothesis. If not, accept the null hypothesis.

We test the hypothesis to determine the probability that the differences found are due only to chance.

If you understand the concept, examples abound. I'll let you find them.

- Statistics -
**Anonymous**, Thursday, September 13, 2012 at 10:01amRandom sample of n=25 scores is obtained from a population of a µ=70 .A treatment is administered to individuals in the sample and after treatment the sample mean M=78 with a standard deviation of s=20

**Answer this Question**

**Related Questions**

Statistics - How is the rejection region defined and how is that related to the ...

statistics - How is the rejection region defined and how is that related to the ...

statistics - Use the given information to find the P-value. Also, use a 0.05 ...

statistics - In a chi-squared test of a contingency table, the value of the test...

Statistics - Please Help I'm desperate! Complete the hypothesis test with ...

Statistics - The claim that "38% of those persons who retired from an ...

statistics - An analysis of variance is used to evaluate the mean differences ...

Statistics - how can I decide to reject or fail to reject the following null ...

statistics - It is known that the population mean for the Quantitative section ...

statistics - Perform hypothesis testing on one variable’s data. (Choose either ...