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. If students have only 100 minutes to complete the exam, what percentage of the class will not finish the exam in time?

Answer #1

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...

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...

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...

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...

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....

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...

(4pt) The time needed to complete a final examination in
college in the United States is normally distributed with a mean of
90 minutes and standard deviation of 10 minutes.
(2pt) What is the probability of completing a final exam in
more than 100 minutes?
Answer:
(2pt) What is the probability of finishing a final examination
between 60 to 120 minutes?
Answer:

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...

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...

A set of final examination grades in an introductory statistics
course is normally distributed, with a mean of 70 and a standard
deviation of 9.
What is the probability that the student scored below 88 on this
exam
What is the probability that a student scored between 61 and
92.5
The probability is 5% that a student taking the test scores
higher than what grade
If the professor grades on a curve --gives A’s to the top 10% of
the...

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