Research on eating disorders. Refer to The American Statistician (May 2001) study of female students who suffer
Question:
Research on eating disorders. Refer to The American Statistician (May 2001) study of female students who suffer from bulimia, presented in Exercise 2.44
(p. 80). Recall that each student completed a questionnaire from which a
“fear of negative evaluation” (FNE) score was produced.
(The higher the score, the greater is the fear of negative evaluation.) Suppose the FNE scores of bulimic students have a distribution with mean m = 18 and standard deviation s = 5. Now, consider a random sample of 45 female students with bulimia.
a. What is the probability that the sample mean FNE score is greater than 17.5?
b. What is the probability that the sample mean FNE score is between 18 and 18.5?
c. What is the probability that the sample mean FNE score is less than 18.5?
Step by Step Answer:
Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package
ISBN: 978-0134090436
13th Edition
Authors: James Mcclave ,Terry Sincich