Levels Tought:
Elementary,Middle School,High School,College,University,PHD
Teaching Since: | May 2017 |
Last Sign in: | 303 Weeks Ago, 2 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
65. It is important that face masks used by   re  ghters be  able  to  withstand  high  temperatures  because re  ghters  commonly  work  in  temperatures  of 200-500°F. In a test of one type of mask, 11 of 55 masks had lenses pop out at 250°. Construct a 90% CI  for  the  true  proportion  of  masks  of  this  type whose lenses would pop out at 250°.
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i                                      i                                                               66. A journal article reports that a sample of size 5 was
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runners seem to react faster than the swimmers in Exercise 59?
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b.  Calculate a 95% con dence interval for the popu- lation proportion of reaction times that are below
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.15. Reaction times below .10 are regarded as false starts, meaning that the runner anticipates the starter s gun, because such times are consid- ered physically impossible. Linford Christie, who had a reaction time of .160 in placing second in his rst-round heat, had two such false starts in the nals and was disquali ed.
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