Question: This exercise is based on an experiment done as a randomized complete block design. Workers’ attitude is used as blocks. The study is designed to compare four types of workshops and their effect on increase productivity.

Please respond to a) and b). In addition separate treatment means (types of workshop means) using LSD. Include inferences.

You could use Excel (highly recommended) or do the exercise by hand.

a. Write a statistical model for this experiment and estimate the parameters in your model.

b. Are there differences in the mean increase in productivity for the four types of workshops? Use \(\alpha \) = .05