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The mean time required to complete a certain type of construction project is 52 weeks with...

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Basic Math

The mean time required to complete a certain type ofconstruction project is 52 weeks with a standard deviation of 3weeks. Answer questions 4–7 using the preceding information andmodeling this situation as a normal distribution.

  1. What is the probability of the completing the project in nomore than 52 weeks?
  1. 0.25
  2. 0.50
  3. 0.75
  4. 0.05
  1. What is the probability of the completing the project in morethan 55 weeks?
  1. 0.1587
  2. 0.5091
  3. 0.7511
  4. 0.0546
  1. What is the probability of completing the project between 56weeks and 64 weeks?
  1. 0.2587
  2. 0.3334
  3. 0.5876
  4. 0.0911
  1. What is the probability of completing the project within plusor minus one standard deviation of the mean?
  1. 0.951
  2. 0.852
  3. 0.759
  4. 0.683

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