Question

The accompanying table lists survey results obtained from a random sample of different crime victims.

Homicide Robbery Assault
Criminal was a stranger   15 190 360
Crimial was an acquaintance or relative   35 80 320

At the 0.01 significance level, test the claim that the type of crime is independent of whether the criminal is a stranger. Which of the following is true?

Select one:

a. None of the other answers in necessary true.

b. The expected value of the test statistics is 39.56 and the critical value is 4.60, hence we conclude that the type of crime is dependent on whether the criminal is a stranger

c. The expected value of the test statistics is 4.60 and the critical value is 9.21, hence we conclude that the type of crime is independent of whether the criminal is a stranger

d. The expected value of the test statistics is 30.35 and the critical value is 9.21, hence we conclude that the type of crime is dependent on whether the criminal is a stranger

e. The expected value of the test statistics is 39.56 and the critical value is 9.21, hence we conclude that the type of crime is dependent on whether the criminal is a stranger

f. The expected value of the test statistics is 30.35 and the critical value is 4.60, hence we conclude that the type of crime is dependent on whether the criminal is a stranger

Answer 1