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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1. In a sleep-laboratory experiment, 16 volunteers sleep an average of 7.4 hours with a standard deviation of 1.3 hours. What would be a 99% confidence interval estimate for the mean number of hours that people sleep at night?
2. A doctor notes the number of hours that 17 surgery patients spend in the recovery room after use of a new anesthetic. If ![]()
what is an 80% confidence interval estimate for the mean number of hours spent in the recovery room by patients using the new anesthetic?
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