A study was aimed at assessing the class-schedule satisfaction levels, on a scale of 1 (very dissatisfied) to 7 (very satisfied), of nontenured faculty who were job-sharers, full time, or part-time. For a sample of 25 job-sharers, the mean satisfaction level was 6.60; for a sample of 24 full-time faculty the mean satisfaction level was 5.37; for a sample of 20 part-time faculty, the mean satisfaction level was 5.20. The F ratio calculated from these data was 6.62.
a. Prepare the complete analysis of variance table.
b. Test the null hypothesis of equality of the three population mean satisfaction levels.