How is sample size related to statistical tests and outcomes? Give a specific example.

  1. How is sample size related to statistical tests and outcomes? Give a specific example. Why is it important to plan the sample size before collecting data? (One peer-reviewed journal article)

 

  1. Provide the necessary information for a possible study on “assessing whether men or women are more likely to suffer from depression”: provide one independent variable, one dependent variable, and two conditions/treatments and answer the following questions:
  2. a) How do you know this dependent variable is measured on a continuous scale?
  3. b) How would you word the null hypothesis for your sample study?
  4. c) How would you word the alternative hypothesis for your sample study?
  5. d) What alpha level would you set to test your hypothesis? Why?