The Sample Size Needed to Provide a Margin of Error

question 25

Multiple Choice

The sample size needed to provide a margin of error of 2 or less with a .95 probability when the population standard deviation equals 11 is

• A)10
• B)11
• C)116
• D)117

Analyze the socio-economic factors affecting single-parent families and their implications for child development.

Understand the diversity of adult relationship dynamics and marital decisions, including cultural variations.

Examine the emotional and psychological effects of adult life events and stages on self-esteem and identity formation.

Recognize the challenges and benefits of transition to parenthood and family life adjustments.

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Definitions:

Expected Value

The long-run average value of repetitions of the same experiment or process, representing the central tendency.

Laws of Expected Value

Mathematical rules that describe the properties of the expected value, highlighting how it behaves with respect to various operations like addition and multiplication.

Probability Distribution

A mathematical description of the likelihood of various outcomes from a random process.

Number of Horses

The total count of horses in a given scenario or study, often used in statistical analysis related to equine studies.