The Sample Size Needed to Estimate a Population Mean Within

question 126

Multiple Choice

The sample size needed to estimate a population mean within 2 units with a 95% confidence when
The population standard deviation equals 8 is

• A) 9
• B) 61
• C) 62
• D) 8
• E) 50

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Definitions:

Budget Adjustments

Modifications made to a budget to reflect changes in the availability of funds or expenditures.

PERT Times

An abbreviation for Program Evaluation and Review Technique, specifically referring to the estimated durations for tasks involved in project planning.

Optimistic

Having a positive or hopeful outlook on situations, believing that the most favorable outcomes are likely to occur.

Pessimistic

Having a tendency to see the worst aspect of things or believe that the worst will happen.