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Suppose that you wish to obtain a confidence interval for a population mean. Under the conditions described below, should you use the z-interval procedure, the t-interval procedure, or neither?
- The population standard deviation is known.
- The population is far from being normally distributed.
- the sample size is large.
Observations
The action or process of closely monitoring or noticing something or someone, often to gather data or information.
Agreement
A mutual understanding or arrangement, often formalized, between two or more parties.
Triangulation
A method used in research to increase credibility by combining multiple perspectives, data sources, or methodologies to study a single phenomenon.
Research Methods
Various strategies, techniques, and procedures used to investigate specific questions and test hypotheses in scientific studies.
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