A Sample of N = 4 Scores Is Selected from a Population

question 55

Multiple Choice

A sample of n = 4 scores is selected from a population with μ = 50 and σ = 12.If the sample mean is M = 56,what is the z-score for this sample mean?​

• A)​0.50
• B)​1.00
• C)​2.00
• D)​4.00

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Definitions:

Mental Images

Visual or other sensory representations created by the mind, which can be used in problem-solving and creative thinking.

Echoic Memory

A form of sensory memory that retains audio information for a short period after the original sound has ceased.

Effortful Processing

A type of memory encoding that requires attention and conscious effort.

Automatic Processing

A type of cognitive processing that occurs automatically, without conscious thought, often as a result of learning and practice.