Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 8.
a.What is the probability that a randomly selected exam will have a score of at least 71?b.What percentage of exams will have scores between 89 and 92?c.If the top 2.5% of test scores receive merit awards, what is the lowest score eligible for an award?
What will be an ideal response?
?
| a. | .8697 |
| b. | 6.35% |
| c. | 95.68 |
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Dapper Hat Makers is in the business of designing and producing specialty hats. The material used for derbies costs $4.50 per unit, and Dapper pays each of its two full-time employees $250 per week. If the company makes 30 derbies in a week, what is the variable cost per derby?
A) $4.50 B) $15.00 C) $16.67 D) $21.17
Under accrual accounting, revenues are recognized when
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