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An investigator is interested in the physiological effects of sleep. He selects, at random a group of 100 people in his city, and determines the mean number of hoursspent in sleep during a certain 3-day period. The sample mean is found to be 7.15 and the sample standard deviation is 1.10. Find the sum of the squared deviations from the mean.
  • .110
  • .3
  • 1
  • .5
  • .6
  • *****
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    Carlos Rodriguez <carlos@math.albany.edu>
    This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
    Last modified: Wed May 13 12:29:11 EDT 1998