Jane has an early class tomorrow morning. She knows that she needs to get to bed by 10:00 pm in order to be sufficiently rested to concentrate and participate in class. However before she goes to bed, she must start and then complete a homework assignment which is due tomorrow morning. According to her experience, the time it takes her to complete a homework assignment for this class is Normally distribute with mean =3.5 hours and standard deviation =1.2 hours. Helen looks at her watch and sees that it is now 6:00 pm. What is the probability that she will be able to get to bed in time to be sufficiently rested for the next day's class?© BrainMass Inc. brainmass.com June 3, 2020, 8:27 pm ad1c9bdddf
This is a word problem. From the given information, we know that she needs to get to bed by 10:00 pm in order to be sufficiently rested to concentrate and participate in class. But it is 6:00 pm now. So, we can know that it is about FOUR hours for her to complete the homework so that she can get to bed by 10:00 pm.
Assume that she needs X hours to complete her homework assignment. Then we know that X is a random ...
The probability that she will be able to get to bed on time is discussed.