A Researcher Wished to Evaluate the Operating Life of a Certain

question 61

Short Answer

A researcher wished to evaluate the operating life of a certain brand of storage battery. A group of 30, brand-new batteries was selected and placed in 30 identical automobiles. The lights in each automobile were then turned on (without running the engines), and the length of time before the batteries were fully discharged (lights went out) was recorded. The scores, in hours, were: 15, 10, 20, 18, 18, 11, 11, 11, 11, 12, 12, 12, 10, 9, 9, 8, 9, 9, 11, 11, 11, 15, 12, 12, 12, 10, 12, 12, 15, 12.
-Calculate the median.

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Definitions:

Inferior Good

A type of good for which demand decreases as the income of the consumer increases, opposite to normal goods.

Negative

In the context of economics, denotes a situation or indicator that reflects a decrease, deficit, or detrimental condition.

Inelastic Supply

A situation where the quantity supplied of a good or service is not significantly influenced by changes in price.

Quantity Supplied

The total amount of a product that producers are willing and able to sell at a given price over a specified period.