In Problem 5-6, suppose that there are only four machines of interest, but the operators were selected at random.

(a) What type of model is appropriate?

(b) Perform the analysis and estimate the model components.

Problem 5-6

The factors that influence the breaking strength of a synthetic fiber are being studied. Four production machines and three operators are chosen and a factorial experiment is run using fiber from the same production batch. The results are as follows:

Transcribed Image Text:

Machine Operator 2 3 4 1 109 110 108 110 110 115 109 108 110 110 111 114 112 111 109 112 116 112 114 120 114 115 119 117 2. 3.