Wildlife Scientists Studying a Certain Species of Frogs Know That

question 17

Essay

Wildlife scientists studying a certain species of frogs know that past records indicate the adults should weigh an average of 118 grams with a standard deviation of 14 grams. The researchers collect a random sample of 50 adult frogs and weigh them. In their sample the mean weight was only 110 grams. One of the scientists is alarmed, fearing that environmental changes may be adversely affecting the frogs. Do you think this sample result is unusually low? Explain.

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Definitions:

Direct Materials

Raw materials that are directly used in the production of a product and can be easily attributed to that product.

Direct Labor

The cost of workers who can be directly traced to the production of products.

Overhead Cost

Indirect expenses related to the day-to-day operations of a business, such as rent, utilities, and administrative salaries.

Work in Process Inventory

Goods that are in the process of being produced but are not yet finished products in manufacturing.