The experiment in Problem 11 in Chapter 18 was repeated€”this time using three workers per technology/experience combination rather than just one. For each cell the following table, the outputs (in number of units per hour) are listed for three randomly chosen workers at the given experience level.

a. Are the two factors in this problem€”Technology and Operator Experience€” fixed or random factors?
b. Form the table of sample means for these data, and comment on observed pai
c. The data may be analyzed by using a two-way ANOVA. Determine the ANOVA table for these data.
d. Analyze the accompanying computer output to determine whether significant main effects exist due to technology type and worker experience and whether these factors significantly interact.

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Technology Operator Experience High Moderate Automation (M) <1 Year 1-2 Years 2 Years 16, 14. 12 15, 18, 17 20.18. 19 8, 12. 10 10, 10, 12 13. 13. 14 5, 4, 8 8, 10, 10 12, 11, 13