The paper The Truth About Lying in Online Dating Profiles (Proceedings, Computer-Human Interactions [2007]: 14) describes an
Question:
For purposes of this exercise, assume it is reasonable to regard the two samples in this study as being representative of male online daters and female online daters. (Although the authors of the paper believed that their samples were representative of these populations, participants were volunteers recruited through newspaper advertisements, so we should be a bit hesitant to generalize results to all online daters!)
a. Use the paired t test to determine if there is convincing evidence that, on average, male online daters overstate their height in online dating profiles. Use = - .05.
b. Construct and interpret a 95% confidence interval for the difference between the mean online dating profile height and mean actual height for female online daters.
c. Use the two-sample t test of Section11.1 to test H0: mm 2 mf = 0 versus Ha: mm 2 mf . 0, where mm is the mean height difference (profile €“ actual) for male online daters and mf is the mean height difference (profile €“ actual) for female online daters.
d. Explain why a paired t test was used in Part (a) but a two-sample t test was used in Part (c).
Step by Step Answer:
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore