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Average Battery Life Narrative
The average life of a certain type and brand of battery is 75 weeks. The average life of each of nine randomly selected batteries is as follows: 74.5, 75.0, 72.3, 76.0, 75.2, 75.1, 75.3, 74.9, and 74.8. Assume the battery life distribution is normal. Do the sample data suggest the average life is smaller than 75 weeks?
-Refer to Average Battery Life Narrative. State the appropriate hypotheses.
Efficient Price
A price that reflects all available information and makes the best use of resources, minimizing waste and maximizing value.
Market Output
The total quantity of goods and services produced and supplied by firms in a market at a given price level and time period.
External Benefit
A positive effect experienced by individuals or groups who are not directly involved in an economic transaction or activity.
Market Price
The existing rate at which an item or service may be traded or acquired in a commercial setting.
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