To Estimate a Population Mean, the Sample Size Needed to Provide

question 41

Multiple Choice

To estimate a population mean, 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

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Definitions:

Probabilities

The assessment of the probability that a particular event will take place.

Combinations

A method of counting that determines the number of possible arrangements in a collection without regard to the order of the elements.

Experimental Outcomes

Possible results or occurrences that can happen in an experiment, each outcome having a certain probability of occurring.

Objects

Entities, real or abstract, about which data can be collected and analyzed in various contexts, including programming, mathematics, and everyday situations.