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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 3 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
10.52 In response to an inquiry from its national office, the manager of a local bank has stated that her bank’s average service time for a drive-through customer is
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93 seconds. A student intern working at the bank hap- pens to be taking a statistics course and is curious as to whether the true average might be some value other than 93 seconds. The intern observes a simple random sample of 50 drive-through customers whose average service time is 89.5 seconds, with a standard deviation  of
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11.3 seconds. From these sample results, and using  the
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0.05 level of significance, what conclusion would the student reach with regard to the bank manager’s  claim?
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