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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Young people may feel they are carrying the weight of the world on their shoulders when in reality they are too often carrying an excessively heavy backpack. The article “Effectiveness of a School-Based Backpack Health Promotion Program” (Work, 2003: 113–123) reported the following data for a sample of 131 sixth graders: for backpack weight (lbs),
= 13.83, s = 5.05; for backpack weight as a percentage of body weight, a 95% CI for the population mean was (13.62; 15.89). a. Calculate and interpret a 99% CI for population mean backpack weight. b. Obtain a 99% CI for population mean weight as a percentage of body weight. c. The American Academy of Orthopedic Surgeons recommends that backpack weight be at most 10% of body weight. What does your calculation of part (b) suggest and why?
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