Data on X = the Weight of a Pickup Truck

question 28

Multiple Choice

Data on x = the weight of a pickup truck (pounds) and y = distance (in feet) required for a truck traveling 40 miles per hour to come to a complete stop for 30 trucks was used to fit the least squares regression line . Which of the following statements is a correct interpretation of the value 26 in the equation of the regression line? ​

• A)On average, the stopping distance increases by 26 feet for each 1-pound increase in truck weight.
• B)On average, the truck weight increases by 26 pounds for each additional foot in stopping distance.
• C)On average, the stopping distance is 26 feet when the truck weight is 0.
• D)Approximately 26% of the variation in the stopping distances can be explained by the linear relationship between stopping distance and truck weight.
• E)It is not reasonable to interpret the intercept in this setting because a weight of 0 is outside the range of the data used to fit the regression line.

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Definitions:

Economic Losses

Losses incurred when a company or economy's total costs exceed its total revenues, indicating a negative profit situation.

Industry Supply

The total quantity of a good or service that all producers in an industry are willing and able to sell at various prices over a certain period.

Marginal Cost

The elevation in overall cost triggered by assembling an extra unit of a product or service.

Overallocated

The condition of having allocated or committed more resources to a project, task, or item than is available or necessary.