Use the Following to Answer Question

question 136

Multiple Choice

Use the following to answer question:
-(Table: Variable Costs for Lawns) Use Table: Variable Costs for Lawns.During the summer,Alex runs a lawn-mowing service,and lawn-mowing is a perfectly competitive industry.Assume that costs are constant in each interval;so,for example,the marginal cost of mowing each of the lawns from 1 through 10 is $10.Also assume that he can only mow the quantities of lawn given in the table (and not numbers in between) .His only fixed cost is $1,000 for the mower.His variable costs include fuel,his time,and mower parts.If the price for mowing a lawn is $60,how much is Alex's total cost at the profit-maximizing output?

• A)$60
• B)$1,100
• C)$2,400
• D)$2,100

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Criterion Validity

Criterion validity evaluates how well a measure predicts an outcome or correlates with a gold-standard assessment.

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Refers to the extent to which a concept, conclusion, or measurement is well-founded and likely corresponds accurately to the real world.

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A measure of the consistency or repeatability of test scores or measurements over time.