The Wildlife Department Has Been Feeding a Special Food to Rainbow

question 49

Multiple Choice

The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. Based on a large number of observations,the distribution of trout weights is normally distributed with a mean of 402.7 grams and a standard deviation of 8.8 grams. What is the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams?

• A)0.3782
• B)0.0222
• C)1.0
• D)0.5

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Definitions:

Variable Cost

Costs that vary in direct proportion to changes in levels of production or business activity, such as materials and labor.

Fixed Cost

A cost that does not change with the volume of sales.

Fixed Costs

Expenses that do not change in proportion to the activity of a business, such as rent, salaries, and loan payments.

Variable Costs

Costs that vary directly with the level of production or sales, such as materials and labor.