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The length of time required to complete a college
Chapter 4, Problem 161SE(choose chapter or problem)
Problem 161SE
The length of time required to complete a college achievement test is found to be normally distributed with mean 70 minutes and standard deviation 12 minutes. When should the test be terminated if we wish to allow sufficient time for 90% of the students to complete the test?
Questions & Answers
QUESTION:
Problem 161SE
The length of time required to complete a college achievement test is found to be normally distributed with mean 70 minutes and standard deviation 12 minutes. When should the test be terminated if we wish to allow sufficient time for 90% of the students to complete the test?
ANSWER:
Solution:
Step 1 of 2:
The length of time required to complete a college achievement test is normally distributed with mean 70 minutes and standard deviation 12 minutes.
We have to find the time when should the test be terminated, if we wish to allow sufficient time for 90% of the students to complete the test.