In a Certain Population, Body Weights Are Normally Distributed with a Mean

question 97

Multiple Choice

In a certain population, body weights are normally distributed with a mean of 152 pounds and a standard deviation of 26 pounds. How many people must be surveyed if we want to estimate the percentage who weigh more than 180 pounds? Assume that we want 96% confidence that the error
Is no more than 2.5 percentage points.

• A) 1682
• B) 591
• C) 1281
• D) 811

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Definitions:

Production Economies

Advantages that result from efficiency improvements in the production process, often achieved through increased scale, technology advancements, or optimized resource allocation.

Demand Aggregation

A strategy that combines product or service demands from different sources to get better prices or terms from suppliers.

Offshoring

The practice of relocating business processes or production to another country to reduce costs or take advantage of favorable conditions.

Production Facility

A place equipped with the necessary equipment and machinery for the manufacture of products.