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Expected counts in chi-squared tests with two-way tables

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Rashad is a hotel manager. He surveyed a random sample of 120 guests and asked them which floor their room was and about their level of satisfaction. Here are the results:
Hotel floorSatisfiedNeutralNot satisfiedTotal
Rashad wants to perform a χ2 test of independence between floor and satisfaction.
What is the expected count for the cell corresponding to satisfied guests that stayed in floors 7 to 9?
You may round your answer to the nearest hundredth.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi