Random Samples of Size 64 Are Taken from an Infinite

question 40

Multiple Choice

Random samples of size 64 are taken from an infinite population whose mean is 160 and standard deviation is 32. The mean and standard error of the sample mean, respectively, are:

• A)160 and 32.
• B)64 and 32.
• C)160 and 4.
• D)20 and 4.

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Definitions:

Correlation Coefficient

A statistical measure that indicates the extent to which two variables change together, ranging from -1.0 to +1.0.

Direction

Guidance or supervision towards a specific aim or goal; also refers to the course along which something moves.

Strength

The quality or state of being physically strong.

Negatively Correlated

A connection between two factors where as one factor rises, the other falls, and the reverse is also true.