Quiz

A study was done to see if there was a relationship between the type of car a person drives and the type of job they have.  The table below shows counts of a survey that was conducted.  385 people were surveyed.

  American Japanese Other
Unskilled 65 30 15
Management 30 25 10
Technical 24 40 18
Education 17 19 6
Government 21 11 9
Health 10 15 20

 

A.  Compute the contribution to c2 from the unskilled workers who own an American car.

B.  If the c2 statistics was 27.17, what can be concluded at the 0.05 level of significance?