soda bottles

Project Description:

the fill amount of bottles of a soft drink is normally ditributed with a mean of 2.0 liters and a standard deviation of 0.05 liter. if, you select a random sample of 25 bottles, what is the probability that the sample mean will be:

1) between 1.99 and 2.0 liters?
2) below 1.98 liters?
3) greater than 2.01 liters?
4) the probibilty is 99% that the sample mean amount of soft drink will be at least how much?
5) the probability is 99% that the sample mean amount of soft drink will be between which two values (symmetrically distibuted around the mean)?

need answered in excel 2010 and all formulas in the answers.
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