Question

The time to complete a standardized exam is normally distributed with a mean of 55.8 minutes...

The time to complete a standardized exam is normally distributed with a mean of 55.8 minutes and a standard deviation of 9.3 minutes. The designers of the exam want to set a time limit where only 14% of the people taking the exam do not finish. What should this time limit be?

Please explain where each number goes! I have to show full work!

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The time to complete a standardized exam is approximately Normal with a mean of 70 minutes...
The time to complete a standardized exam is approximately Normal with a mean of 70 minutes and a standard deviation of 10 minutes. (z (X-μ)/σ) μ= σ= A) If students are given 85 minutes to complete the exam, what probability that students will not finish? B) What percent of students will complete the exam between 63 minutes and 80 minutes?
The time needed to complete a final examination in a particular college course is normally distributed...
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?
3. the time required for a student to complete the exam is uniformly distributed with a...
3. the time required for a student to complete the exam is uniformly distributed with a minimum time of 85 minutes and a maximum time of 125 minutes. Is this an example of discrete or a continuous uniform probability distribution? Please explain Please depict this probability distribution in some appropriate manner Please determine the probability that a randomly selected student requires less than 112 minutes to complete the exam. Show work Please determine the probability that a randomly selected student...
The time required to finish a test in normally distributed with a mean of 40 minutes...
The time required to finish a test in normally distributed with a mean of 40 minutes and a standard deviation of 8 minutes. What is the probability that a student chosen at random will finish the test in more than 48 minutes?
9.   Suppose that the time that it takes a student to complete this test is normally...
9.   Suppose that the time that it takes a student to complete this test is normally distributed. The mean time is 58 minutes with a standard deviation of 11 minutes. Use the empirical rule to solve the following questions. Answers using the normal calculator and not the empirical rule will be marked as wrong. a.   What is the probability that a person will take between 47 and 58 minutes? (Draw a picture to show your answer.) b.   What is the...
the time to complete an exam is approximately normal with a mean of 50 minutes and...
the time to complete an exam is approximately normal with a mean of 50 minutes and a standard deviation of 4 minutes. the bell curve below represent the distributions for testing times. the scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes.
The time needed to complete a final examination in a particular college course is normally distributed...
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...
Q1      An employment agency has found that the mean time required for applicants to finish an...
Q1      An employment agency has found that the mean time required for applicants to finish an aptitude test is normally distributed with a mean of 24.5 minutes and a standard deviation of 4.5 minutes. What is the probability that an applicant will finish the aptitude test in 22 minutes or less? What is the probability that an applicant will finish the test in between 28 to 35 minutes? The director for the agency would like to set a time limit...
The time spent on an exam by a class of 100 students is normally distributed with...
The time spent on an exam by a class of 100 students is normally distributed with a mean of 50 minutes and a standard deviation of 8 minutes. Using the percentage approximations for the normal curve, what is the percentage of the population of all exam takers that would spend between 50 to 62 minutes on the exam? (Use of Z table is necessary) A. 41.92% B. 43.32% C. 8.08% D. 6.68%
The time needed to complete a final examination in a particular college course is normally distributed...
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...