Question

The time needed to complete a final quiz in a particular college course is normally distributed with a mean of 77 minutes and a standard deviation of 12 minutes. Answer the following questions.

**a.** What is the probability of completing the
quiz in one hour or less (to 4 decimals)?

**b.** What is the probability that a student will
complete the quiz in more than 60 minutes but less than 75 minutes
(to 4 decimals)?

**c.** Assume that the class has 60 students and
that the quiz period is 90 minutes in length. How many students do
you expect will be unable to complete the quiz in the allotted time
(to nearest whole number)?

Answer #1

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The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 77 minutes
and a standard deviation of 12 minutes. Answer the following
questions.
a. what is the probability of completing the exam in one hour or
less (to 4 decimals)
b. what is the probability that a student will complete the exam
in more than 60 minutes but less than 75 minutes (to 4
decimals)
c. assume that the class...

The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)
What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(b)
What is the probability that a student will complete the exam in
more than 60 minutes but less than 75 minutes? (Round your answer
to...

11) The time needed to complete a final examination in a
particular college course is normally distributed with a mean of 90
minutes and a standard deviation of 15 minutes. Answer the
following questions. a. What is the probability of completing the
exam in one hour or less? b. What is the probability that a student
will complete the exam in more than 60 minutes but less than 105
minutes? c. Assume that the class has 60 students and that...

he time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions. (a) What is the probability of completing the exam in
one hour or less? (Round your answer to four decimal places.) (b)
What is the probability that a student will complete the exam in
more than 60 minutes but less than 65 minutes? (Round your answer
to...

You may need to use the appropriate appendix table to answer
this question.
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(b)What is the probability that a student will complete the exam
in more than...

The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. If students have only 100
minutes to complete the exam, what percentage of the class will not
finish the exam in time?

1. (a) The time needed to complete a final examination in a
particular college course is normally distribution with a mean of
80 minutes and a standard deviation of 10 minutes. What is the
probability that a student will complete the exam between 60 and
100 minutes?
1 (b) The mean preparation fee H&R Block charged retail
customers last year was $183. Use this price as the population mean
and assume the population standard deviation of preparation fees is
$50....

v
You may need to use the appropriate appendix table to answer
this question.
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)
What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(c)
Assume that the class has 90 students and that the examination...

The time it takes students to complete a quiz is Normally
distributed with a mean of 45 minutes and a standard deviation of 4
minutes.
a)What percent of all students take longer than 50 minutes to
complete the quiz? Round your answer to the nearest whole percent.
Don't write the percent symbol in your answer.
b)If you take a sample of 30 students, what is the probability
that the average amount of time needed to complete the quiz for
this...

The average time to complete the quiz for all students in the
class is uniformly distributed between 90 minutes and 150
minutes.
Define x
Write the notation for the distribution that defines x. x~
Find the mean and interpret the results
Find the probability that a student finishes in less than 95
minutes
Find the probability that a student takes at least 135 minutes
to finish the quiz

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