Suppose That 100 Items Are Drawn from a Population of Manufactured

question 63

Multiple Choice

Suppose that 100 items are drawn from a population of manufactured products and the weight, X, of each item is recorded. Prior experience has shown that the weight has a non-normal probability distribution with $\mu$ = 8 ounces and $\sigma$ = 3 ounces. Which of the following is true about the sampling of $\bar { X }$ ?

• A)Its mean is 8 ounces.
• B)Its standard error is 0.3 ounces.
• C)Its shape is approximately normal.
• D)All of these choices are true.

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Definitions:

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