Essay
Suppose that the time needed to complete a final exam is normally distributed with a mean of 85 minutes and a standard deviation of 18 minutes.
a. What is the probability that the total time taken by a group of 100 students will not exceed 8200 minutes?
b. What assumption did you have to make in your computations in part (a)?
Correct Answer:
Verified
a. 0.0475.
b. It is necessary ...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Correct Answer:
Verified
b. It is necessary ...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
Q55: A video rental store wants to know
Q56: A local newspaper sells an average of
Q57: A sample of size 35 is taken
Q58: If a random sample of size
Q59: Which of the following are involved in
Q61: A population that consists of 250 items
Q62: The standard deviation of the sampling distribution
Q63: An auditor knows from past history that
Q64: Consider an infinite population with a mean
Q65: The standard deviation of a sampled population