<PRE><B>Question 205978</B>
The fill amount of bottles of soft drink has been found to be normally distributed with a mean of 2.0 liters and a standard deviation of 0.05 liters.
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 If random sample of bottles is selected, what is the probability that the sample mean will be below 1.98 liters?
z(1.98) = (1.98-2)/[0.05/sqrt(n)] where n is the number of bottles selected.
Comment: You did not list the sample size so the problem cannot be
done.
Cheers,
Stan H.

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greater than 2.01 liters? 
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The probability is 99% that the sample mean will contain at least how much soft drink?
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The probablity is 99% that the sample mean will contain an amount that is between which two values (symetrically distributed around the mean)?

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