QUESTION 2 Problem 2: The time to complete a task on a project is normally distributed with mean of 75 hours and a standard deviation of 5 hours. a. What is the probability that a task will be completed in less than 60 hours? b. What is the third quartile of the time to complete tasks? c. A random sample of 25 project tasks are selected, what is the probability that average completion time is greater than 80 hours.
QUESTION 2 Problem 2: The time to complete a task on a project is normally distributed with mean of 75 hours and a standard deviation of 5 hours. a. What is the probability that a task will be completed in less than 60 hours? b. What is the third quartile of the time to complete tasks? c. A random sample of 25 project tasks are selected, what is the probability that average completion time is greater than 80 hours.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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QUESTION 2
Problem 2:
The time to complete a task on a project is normally distributed with mean of 75 hours and a standard deviation of 5 hours.
a. What is the probability that a task will be completed in less than 60 hours?
b. What is the third quartile of the time to complete tasks?
c. A random sample of 25 project tasks are selected, what is the probability that average completion time is greater than 80
hours.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F924b9162-33d4-45ba-a841-d3389dc66ba3%2Fde8fa8d8-7efe-4a88-ae39-ab7009d4a951%2Fnalr3s9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:MIL
QUESTION 2
Problem 2:
The time to complete a task on a project is normally distributed with mean of 75 hours and a standard deviation of 5 hours.
a. What is the probability that a task will be completed in less than 60 hours?
b. What is the third quartile of the time to complete tasks?
c. A random sample of 25 project tasks are selected, what is the probability that average completion time is greater than 80
hours.
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