Math Solutions

[Solved] To encourage telephone efficiency, a catalog call center issues a guideline that at least half of all telephone orders should be completed within

Question: To encourage telephone efficiency, a catalog call center issues a guideline that at least half of all telephone orders should be completed within 2 minutes. Subsequently, a random sample of 64 telephone calls showed that 40 calls lasted over 2 minutes.

  1. At α = .05 is this a significant departure from the guideline in a right-tailed test? State your hypotheses and decision rule.
  2. Find the p-value.
  3. Is the difference important (as opposed to significant)?

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