1. What is the difference between paired and independent samples? 2. In many st

1. What is the difference between paired and independent samples? 2. In many statistical applications, we may be interested in finding confidence intervals for, or testing hypotheses about, the same set of parameters. Explain the link between the confidence level and the significance level in these cases. 3. Explain how to interpret the Excel results for a hypothesis test for equality of variances.

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