A government report says that a 90% confidence interval for the mean income ofAmerican
Chapter 0, Problem 14.17(choose chapter or problem)
A government report says that a 90% confidence interval for the mean income ofAmerican households is $59,067 $356. This is based on a random sample of60,000 households. If the same sample results had come from a sample of 15,000households, the new margin of error would be(a) $712. (b) $356. (c) $178.
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