Supermarket Prices Narrative
A building contractor employs three construction engineers, A, B, and C to estimate and bid on jobs. To determine whether one tends to be a more conservative (or liberal) estimator than the others, the contractor selects four projected construction jobs and has each estimator independently estimate the cost (in dollars per square foot) of each job. The data are shown in the table:
Construction Job
-Refer to Supermarket Prices Narrative. If any differences in treatment means exist, use an appropriate method to identify specifically where the differences lie. Has blocking been effective in this experiment? Explain.

Question

Supermarket Prices Narrative
A building contractor employs three construction engineers, A, B, and C to estimate and bid on jobs. To determine whether one tends to be a more conservative (or liberal) estimator than the others, the contractor selects four projected construction jobs and has each estimator independently estimate the cost (in dollars per square foot) of each job. The data are shown in the table:
Construction Job 
-Refer to Supermarket Prices Narrative. If any differences in treatment means exist, use an appropriate method to identify specifically where the differences lie. Has blocking been effective in this experiment? Explain.

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The Answer of Supermarket Prices Narrative
A building contractor employs three construction engineers, A, B, and C to estimate and bid on jobs. To determine whether one tends to be a more conservative (or liberal) estimator than the others, the contractor selects four projected construction jobs and has each estimator independently estimate the cost (in dollars per square foot) of each job. The data are shown in the table:
Construction Job 
-Refer to Supermarket Prices Narrative. If any differences in treatment means exist, use an appropriate method to identify specifically where the differences lie. Has blocking been effective in this experiment? Explain.

Supermarket Prices Narrative a Building Contractor Employs Three Construction Engineers, A, B, and A