Lumber Weight Narrative Let X Be the Weight in Tonnes (1 Tonne =

question 39

Essay

Lumber Weight Narrative
Let x be the weight in tonnes (1 tonne = 1000 kg) of a load of lumber and y be the time (in hours) it takes to load it onto a truck. A simple linear regression model relates x and y where the least-squares estimates of the regression parameters are b = 6.5 and a = 3.3.
-Refer to Lumber Weight Narrative. What is the average change in time per one tonne increase in weight?

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