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How do hypothesis-testing procedures differ for the population mean when the population standard deviation is known or unknown? What is the relationship between two-sided hypothesis tests for means and confidence intervals?

Why would the population variability and the sample size affects the power of a test? How do the level of significance and the power of a test relate to each other?

Hint: We are dealing with hypothesis testing issues.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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