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A Randomly Selected Sample of N =51 Men in Brazil

Question 29

Multiple Choice

A randomly selected sample of n =51 men in Brazil had an average lifespan of 59 years. The standard deviation was 10 years. Calculate a 98% confidence interval for the average lifespan for all men in Brazil.


A) (55.6, 62.4)
B) (56.2, 61.8)
C) (35.0, 83.0)
D) None of the above

Correct Answer:

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