The time needed to complete a final examination in a, Ask an Expert

Statistics

Please show work.

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?

b. What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes?

c. Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9373073

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

If you are constructing a confidence interval for a

If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as the sample size increases. Decrease Increase Stay the same Depen ...

1 what is the standard deviation of the sampling

1. What is the standard deviation of the sampling distribution? 2. What is the expected value? 3. What is the probability that the average life in the sample will be between 2,670.56 and 2,809.76 hours? 4. What is the pr ...

A blaster rifle manufacturing facility on naboo has 6500

A blaster rifle manufacturing facility on Naboo has 6,500 employees. The employees were asked whether they preferred a four-day work week (10 hours per day), a five- day work week (8 hours per day), or flexible hours. Yo ...

The local police department must write an average of 5

The local police department must write an average of 5 traffic tickets each day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with a mean of ...

Assume that from a random sample of 18 trees a researcher

Assume that from a random sample of 18 trees a researcher found that the average height of the trees was 4.3 meters with a standard deviation of 0.25 meters. Assume that the distribution of the heights of these trees is ...

1 overproduction of uric acid in the body can be an

1. Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma.† Over a period of months, an adult male patient has tak ...

Star corp is considering investing in new equipment to

Star Corp. is considering investing in new equipment to serve more customers. You have been asked to determine the required return of Star Corp's common equity, assuming that the firm will raise new equity financing to f ...

1 table 1016 contains the value of the house and the amount

1 Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create a scatter plot and find a regression equation between house value an ...

Leprosy also called hansens disease is a disease produced

Leprosy, also called Hansen's disease, is a disease produced by infection with a bacterium called Mycobacterium leprae. It has a long incubation period (time between getting infected and developing the disease), usually ...

If the coefficient of determination is 0233 what percentage

If the coefficient of determination is 0.233, what percentage of the data about the regression line is explained? How do I go about solving this?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert