A study suggests that the average canadian drink 8.2 liters

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A study suggests that the average canadian drink 8.2 liters of milk per month.

The distribution has a standard deviation of 3.2 liters. A random sample of 33 canadian is taken.

a. What is the probability of the sample having a mean greater than 8.7 liters?

b. What is the probability of the sample mean being within 0.5 liters of the population mean?

enter all probabilities as a percent, correct to two digits after the decimal point, without the percent symbol.

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