The number of defective items produced in a week by each of 5 different production lines (called A, B, C, D, and E) is as follows:
A:15 B:27 C:31 D:19 E:11 total: 103
This data will be used to test if the lines are of equal quality, i.e.H0:p1=p2=p3=p4=p5=0.2.
1. If the production lines are of equal quality, how many defective items would we expect to be produced by line C?
Round your answer to one decimal place.
2. What is the value of the Chi-square statistic for this test?
Round your answer to 3 decimal places.