2 Researchers know that the average rate of violence within

2. Researchers know that the average rate of violence within intimate relationships is 20 men or women per minute in the US (SD.47), according to the National Coalition against Domestic Violence (NCADV). The local chapter of the NCADV is concerned about area rates of domestic violence because the local average is 23.20 (N). They would like to determine if the local rate is the same as the national rate.

A. What are the independent and dependent variables and how are each scaled?

            Independent:

Scaling:

            Dependent:

Scaling:

B. What test should be used?

C. Why that test?

D. What are the null and alternative hypotheses for that test?

E. What are that tests assumptions?

F. What are the df?________________________

G. What is the critical value for p =.05? _________________________

H. If the researchers calculate a test statistic of 1.78, should they?     Retain H₀                  Reject H₀

I. Interpret the findings:

Solution

SD=47 sample mean=20 and population mean=23.20

it is not given sample size so we can not find the problem.