SCENARIO 12-21 A Filling Machine at a Local Soft Drinks Company Is

question 8

Multiple Choice

SCENARIO 12-21
A filling machine at a local soft drinks company is calibrated to fill the cans at a mean amount of 12
fluid ounces and a standard deviation of 0.5 ounces. The company wants to test whether the standard
deviation of the amount filled by the machine is 0.5 ounces. A random sample of 15 cans filled by
the machine reveals a standard deviation of 0.67 ounces.
-Referring to Scenario 12-19, what type of test should be performed?

• A) Lower-tail test
• B) Upper-tail test
• C) Two-tail test
• D) None of the above

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Definitions:

Time Spent

The duration or period during which an action takes place or an individual is engaged in a particular activity.

Mean

The average of a set of numbers, calculated by adding them all together and then dividing by the total number of values.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of data, commonly the mean, median, or mode.

Positively Correlated

A relationship between two variables where both variables move in the same direction, meaning that as one variable increases, the other also increases, or as one decreases, the other also decreases.