A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. To conduct a contingency analysis using a 0.01 level of significance,the value of the critical value is:
A)15.0863
B)5.9915
C)9.2104
D)11.0705

Question

A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers.  To conduct a contingency analysis using a 0.01 level of significance,the value of the critical value is:
A)15.0863 
B)5.9915 
C)9.2104 
D)11.0705

Quizplus · Accepted Answer

To conduct a contingency analysis, we use a chi-square test. The critical value for this test with 1 degree of freedom and a significance level of 0.01 is 9.2104. Therefore, the correct choice is C. The other choices are critical values for different levels of significance or degrees of freedom, and are not applicable for this problem.

A Cell Phone Company Wants to Determine If the Use