At Ajax Spring Water a halfliter bottle of soft drink is sup

At Ajax Spring Water, a half-liter bottle of soft drink is supposed to contain a mean of 538 ml. The filling process follows a normal distribution with a known process standard deviation of 4 ml. (a) The normal distribution should be used for the sample mean because (You may select more than one answer. Click the box with a check mark for the correct answer and click to empty the box for the wrong answer.) the sample population has a large mean the population distribution is known to be normal the population standard deviation is known the standard deviation is very small

Solution

The normal distribution should be used for the sample mean because: