document.write( "Question 871609: suppose that a travel bureau claims that the trees in a forest are 84 feet tall on average, with a standard deviation of 2 feet. If you took a sample of 64 trees, which of the following mean heights would be outside the 95% confidence interval \n" ); document.write( "

Algebra.Com's Answer #525650 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "mean = 84, SD = 2, Sample 64, 
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document.write( "95% confidence interval: z = 1.96
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document.write( "ME = 1.96*2/√64 = .49  Using .5
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document.write( "CI: 83.5< mean < 84.5
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document.write( "Outside of that:  x ≤ 83.5  and ≥  84.5 \n" );
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