Solved: How hypothesis-testing procedures differ for population mean, Basic Statistics

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How hypothesis-testing procedures differ for population mean

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Q1: 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?

Q2: 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?

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Basic Statistics: How hypothesis-testing procedures differ for population mean

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