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In: Statistics and Probability

The label on the bottles of spring water of a certain brand says 250 milliliters. A...

The label on the bottles of spring water of a certain brand says 250 milliliters. A random sample of 20 bottles has an average of 248 milliliters. Suppose we know that the population, which is normally distributed, has a standard deviation of 2.5 milliliters. Does this seem to indicate that the population mean volume of a bottle is 250 milliliters?

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