SOLUTION: 25 samples were selected by taking every seventh sample from racks holding 187 samples. The mean was 8.636 with a standard deviation of 3.9265. What is the true mean at 90 percent
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Question 450625: 25 samples were selected by taking every seventh sample from racks holding 187 samples. The mean was 8.636 with a standard deviation of 3.9265. What is the true mean at 90 percent confidence Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! 25 samples were selected by taking every seventh sample from racks holding 187 samples. The mean was 8.636 with a standard deviation of 3.9265. What is the true mean at 90 percent confidence
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sample mean = 8.636
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SE = z*s/sqrt(n) = 1.645 = 1.2917
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90%CI: 8.636-1.2917 < u < 8.6236+1.2917
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Cheers,
Stan H.
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