Explore BrainMass

Explore BrainMass

    standard normal distribution

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    A project is being analyzed using PERT. The expected completion time of the project is 70 weeks with a standard deviation of 5 weeks. Assume the project completion time is normally distributed. What is the probability that the project will be finished in 74 weeks or less?

    a. 0.8000
    b. 0.7881
    c. 0.2119
    d. 0.2881
    e. None of these is correct

    © BrainMass Inc. brainmass.com June 4, 2020, 1:44 am ad1c9bdddf
    https://brainmass.com/statistics/probability/problems-with-standard-normal-distribution-417113

    Solution Preview

    Answer: B

    We can assume X to be the completion time. The standard ...

    Solution Summary

    Standard normal distribution is exemplified.

    $2.19

    ADVERTISEMENT