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Mathematics, 15.04.2020 22:16 Esme1995
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 weighs more than 180 pounds? Assume that we want 96% confidence that the error is no more than 2 percentage points.
A) 923
B) 1267
C) 2628
D) 2001
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