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Statistics Vs. Parameters

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1.2 Sample Statistics and Population Parameters

In the problems below, identify the given value as a statistic or a parameter:

A study of every national park’s sales receipts for August shows they brought in an average of ten million dollars of revenue. Sixty male shoppers at Aventura Mall were randomly chosen and their waist lines were measured revealing an average waist size of 37 inches. A study of all homes sold at auction in Miami last year showed that the average sale price for such homes was $109,823.00. Five hundred Americans were randomly chosen and asked if they think the US should drill for oil off of its coast, and 72% said they were not in favor of drilling. After reviewing the arrival times of every flight that landed at MIA last month it was determined that the on-time rate for flights into MIA was 68%.


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