How much higher is 115 than the mean estimate of the ratio among American adults? How much

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How much higher is 115 than the mean estimate of the ratio among American adults?

How much higher is 115 than the mean estimate in standard deviation units?

d. Use the normal table to find the probability that an estimate of the 90:25 ratio would fall above 115.

e. What is the probability that a randomly selected adult will offer an estimate of the 90:25 ratio that falls below the actual ratio of 115? Why do you think this is?

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Statistics For Social Understanding With Stata And SPSS

ISBN: 9781538109847

2nd Edition

Authors: Nancy Whittier , Tina Wildhagen , Howard Gold

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