Statistics Exercise II: Statistical inference, 1- and 2-sample t-tests-Define “power” in relation to hypothesis testing.
Statistics Exercise II: Statistical inference, 1- and 2-sample t-tests
These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis. Unless otherwise stated, use 5% (.05) as your alpha level (cutoff for statistical significance).
1. Define “power” in relation to hypothesis testing.
2. Alpha (a) is used to measure the error for decisions concerning true null hypotheses. What is beta (ß) error used to measure?
3. In the following studies, state whether you would use a one-sample t test or a two-independent-sample t test.