Sparrow Co

question 42

Multiple Choice

Sparrow Co. is currently operating at 80% of capacity and is currently purchasing a part used in its manufacturing operations for $8.00 a unit. The unit cost for Sparrow Co. to make the part is $9.00, which includes $.60 of fixed costs. If 4,000 units of the part are normally purchased each year but could be manufactured using unused capacity, what would be the amount of differential cost increase or decrease for making the part rather than purchasing it?

• A) $12,000 cost decrease
• B) $4,000 cost increase
• C) $20,000 cost decrease
• D) $1,600 cost increase

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Definitions:

Concurrent Validity

The extent to which test scores correlate with scores from other related measures assessed at the same time.

Discriminant Validity

The extent to which a construct is truly distinct from other constructs by correlating weakly with variables from which it is supposed to differ.

Predictive Validity

The extent to which a score on a scale or test predicts future performance on a related outcome.

Cohen's Kappa

A statistical measure used to evaluate interrater reliability for qualitative (categorical) items, indicating how much agreement is beyond what is expected by chance.