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A Local Tire Dealer Wants to Predict the Number of Tires

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Short Answer

A local tire dealer wants to predict the number of tires sold each month.He believes that the number of tires sold is a linear function of the amount of money invested in advertising.He randomly selects 6 months of data consisting of monthly tire sales (in thousands of tires)and monthly advertising expenditures (in thousands of dollars).Residuals are calculated for all of the randomly selected six months and ordered from smallest to largest.Determine the normal score for the smallest residual.

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Definitions:

Graphics Rating Scale

A method of performance appraisal where employees are rated by placing a mark on a continuous line or scale, visually representing their performance levels.

Norm-Referenced Format

A type of assessment or testing where the performance of an individual is compared to a normative group.

Direct Output Measures

Metrics used to directly assess the quantity, quality, or efficiency of work produced by an individual or group.

Norm-Referenced Appraisal

An evaluation method comparing an individual's performance or characteristics to the norm of a larger group.

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