Discussion:
Q: Company researchers conducted an experiment to compare the changes and r number of festives observed along each of five production lines in which changes were being They monitored production continuously during the period of number of major defectives per day for each line. The data are shown here.
Production Line
1 2 3 4 5
34 54 75 44 80
44 41 62 43 52
32 38 45 30 41
36 32 10 32 35
51 56 68 55 58
a. Compute y and s2 for each sample. Does there appear to be a problems nonconstant variances? Use Hartley's test based on a = .05.
b. Use a square root transformation on the data and conduct an anual transformed data.
c. Draw your conclusions concerning differences among production lines.