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If we say that rare events are those events that happen with a probability of less than .05, then how many observations of men taller than 71 inches tall would you have to observe when randomly sampling before concluding that you had a rare sample?
mean = 69, SD = 4
10 years ago

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Reiny
This is a great webpage for this type of question

http://davidmlane.com/hyperstat/z_table.html
10 years ago

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