Create a sample of ten numbers that has a mean of 8.6. Notice carefully how you did this—it will help you later to understand the concept of degrees of freedom.
Answer to relevant QuestionsCalculate the measures of central tendency for the data on ADDSC and GPA in Appendix D—also available at this book’s website. Seligman, Nolen-Hecksema, Thornton, and Thornton (1990) classified participants in their study (who were members of a university swim team) as Optimists or Pessimists. They then asked them to swim their best event, and in ...Given the following data, show that multiplying each score by a constant multiplies all measures of central tendency by that constant. Instead of adding a score equal to the mean (as in Exercise 5.15), add a score of 40 to the data used in Exercise 5.1. How does this score affect the answers to Exercise 5.1? Use LazStats or MYSTAT to reproduce the means, standard deviations, and other statistics in Exercise 5.19. (MYSTAT will give the most complete results. You will need to work out how to handle missing data, which are ...
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