A textile company weaves a certain fabric on a large number of looms. The managers would like the looms to be homogeneous so that their fabric is of uniform strength. It is suspected that there may be significant variation in strength among looms. Consider the following data for the 4 randomly selected looms. Each observation is a determination of strength of the fabric in pounds per square inch.(a) Write a model for the experiment.(b) Does the loom variance component differ significantly from zero?(c) Comment on the suspicion of Garlon has a significant impact on the height of the shoots. Use a =0.05.

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