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State whetherPaired(dependent) or Unpaired (independent)analysis should be used. An HSSU student is interested in whether there is a difference in freshman and upper classmen in

State whetherPaired(dependent) or Unpaired (independent)analysis should be used.

An HSSU student is interested in whether there is a difference in freshman and upper classmen in terms of their preference to walk up the stairs or take the elevator in the HGA.The student surveyed 40 freshmen and 40 upper classmen.For the upper classmen, 45% said they preferred to walk up the stairs rather than take the elevator.For the freshmen, 55% said they preferred the stairs. The difference between the two sample proportions is to be calculated.

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