SOLUTION: If the manager of a paint supply store wants estimate the mean amount of paint in a 1-gallon can to within +/- 0.004 gallon with 95% confidence and also assume that the standard de
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Question 203877: If the manager of a paint supply store wants estimate the mean amount of paint in a 1-gallon can to within +/- 0.004 gallon with 95% confidence and also assume that the standard deviation is 0.02 gallon, what sample size is needed? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If the manager of a paint supply store wants estimate the mean amount of paint in a 1-gallon can to within +/- 0.004 gallon with 95% confidence and also assume that the standard deviation is 0.02 gallon, what sample size is needed?
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n = [z*s/E]^2
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n = [1.96*0.02/0.004]^2 =
n = 96.04
rounding up you get n = 97 (required sample size)
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Cheers,
Stan H.
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