A Study of Elephants Wishes to Determine the Average Weight

question 72

Multiple Choice

A study of elephants wishes to determine the average weight of a certain subspecies of elephants. The standard deviation of the population is 2000 pounds. How many elephants need to be weighed so find we
Can be 80% confident to be accurate within 300 pounds?

• A) 73
• B) 94
• C) 121
• D) 400

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