The time that it takes a randomly selected applicant for a programmer position to perform a certain task has a distribution that can be approximated by a normal distribution with a mean of 2 hours and a standard deviation of 15 minutes. What is the probability that a randomly selected applicant will perform the task in more than 100 minutes?
Added by Ruth H.
Step 1
Convert 100 minutes to hours: 100/60 = 1.67 hours Show more…
Show all steps
Close
Your feedback will help us improve your experience
Sri K and 51 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The time taken to complete an exam folows a normal probability distribution with a mean of 60 minutes and standard deviation of 10 minutes. What is the probability that a randomly chosen student will complete the exam in 50 minutes or longer?
James K.
Suppose that the waiting time for a license plate renewal at a local office of a state motor vehicle department has been found to be normally distributed with a mean of 30 minutes and a standard deviation of 10 minutes. What is the probability that a randomly selected individual will have a waiting time between 15 and 45 minutes?
Steven C.
The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated by a Normal distribution with a mean of 120 seconds and a standard deviation of 20 seconds. The fastest 10% are to be given advanced training. (a) What task times qualify individuals for such training? (b) The probability of observing a task time that is less than 90 seconds would correspond to the probability that a Standard Normal random variable would be less than what number?
Marc L.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD