Question: The time it takes for a statistics professor to mark his midterm test is normally distributed with a mean of 4.8 minutes and a standard

The time it takes for a statistics professor to mark his midterm test is normally distributed with a mean of 4.8 minutes and a standard deviation of 1.3 minutes.

There are 60 students in the professor’s class. What is the probability that he needs more than 5 hours to mark all the midterm tests? (The 60 midterm tests of the students in this year’s class can be considered a random sample of the many thousands of midterm tests the professor has marked and will mark.)

Step by Step Solution

★★★★★

3.41 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

PTotal time ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

398-M-S-S-D (510).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A random variable is normally distributed with a mean of 60 and a standard deviation of 9. a. What is the probability that a randomly selected value from the distribution will be less than 46.5? b....

A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution, a. What value will be exceeded 10% of the...

A random variable X is normally distributed with a mean of 100 and a variance of 100 and a random variable Y is normally distributed with a mean of 200 and a variance of 400. The random variables...

The time it takes for a statistics professor to mark his midterm test is normally distributed with a mean of 5.8 minutes and a standard deviation of 1.5 minutes. There are 60 students in the...

hi, please help this probability and statistics questions with clear steps and details, thank you . if you cannot find the answer, please give a reason for it. The time it takes for a math professor...

The time it takes for a statistic professor to mark his midterm test is normally distributed with a mean of 5.8mins and a standard deviation of 1.5 mins. There are 60 students in the professors...

im very bad at probability idk how to learn it please send help (1 point) The proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 53,5%. What is the...

The time it takes for a statistics professor to mark a single midterm test is normally distributed with a mean of 4.6 minutes and a standard deviation of 2.3 minutes. There are 59 students in the...

(1 point) The time it takes for a statistics professor to mark a single midterm test is normally distributed with a mean of 4.9 minutes and a standard deviation of 1.7 minutes. There are 65 students...

The time it takes for a statistics professor to mark a single midterm test is normally distributed with a mean of 4.6 minutes and a standard deviation of 2.3 minutes. There are 59 students in the...

What are some of the problems with existing effectiveness measures? Discuss the essentials of effective testing methods.

A novel scheme for cooling computer chips uses a thermosyphon containing a saturated fluorocarbon. The chip is brazed to the bottom of a cuplike container within which heat is dissipated by boiling...

2 The total mass of a wheelbarrow and its load is 90kg. A worker pushes the wheelbarrow and load up a plank of length 2.0m on to a platform, as shown in Fig. 2.1. The platform is at a height of 0.60...

What are four factors that affect a persons earning power?

In a study that was highly publicized, doctors discovered that aspirin seems to help prevent heart attacks. The research project, which was scheduled to last for 5 years, involved 22,000 American...

Plavix is a drug that is given to angioplasty patients to help prevent blood clots. A researcher at McMaster University organized a study that involved 12,562 patients in 482 hospitals in 28...

Credit scorecards are used by financial institutions to help decide to whom loans should be granted (see the Applications in Banking: Credit Scorecards summary on page 63). An analysis of the records...

a)What type of tests could you conduct that would allow you to compare each treatment group to the other (2 at a time) without inflating the type I error ()? b)Why is it important to make sure you do...

The different types of samplings are: A. Probability B. Judgement C. Mixed D. Probability, judgement and mixed. If the sample size is too small, it may not _______________ represent the population or...

Job is determined that he can afford to pay $800 per month toward purchasing a new convertible sports car. Job notices an advertisement in the paper for a bank loan at the rate of 8% pa and he wants...