At least one of the answers above is NOT correct.The City of Calgary reports that the number of vehicles that use the Crowchild Trail bridge varies on weekdays. This variation can be modeledby the Normal distribution with a mean of 107500 vehicles and a standard deviation of 8800 vehicles per day. You pick a weekday at randomand set out a traffic counter on both the north-bound and south-bound lanes of the Crowchild Trail bridge. At the end of a 24-hour period,you are to download the data from the traffic counter and add the two figures to represent the total vehicle usage, X.(a) What is the probability that the total vehicle usage figure will be more than 120500 vehicles?P(X> 120500)=P(Z > 1.48 ) = 0.0694(b) What is the probability that the total vehicle usage figure will be between 80000 and 101000?P(80000 < X < 101000) 0.2288(c) Find the 91 percentile. That is, 91% of the time the total number of vehicles that use the Crowchild Trail bridge in a 24-hour weekdayperiod, is at most how many?119299.04 vehicles(d) 9% of the time the total number of vehicles that use the Crowchild Trail bridge in a 24-hour weekday period, exceeds how many?119299.049 vehicles

Given information: μ=107500, σ=8800

Answered: The City of Calgary reports that the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic deviation of 5 minutes. If 200 ticket buyers were in line, how many of them would expect to wait for less than 16 minutes?
When Lauren runs the 400 meter dash, her finishing times are normally distributed with a mean of 88 seconds and a standard deviation of 2 seconds. If Lauren were to run 42 practice trials of the 400 meter dash, how many of those trials would be between 83 and 84 seconds, to the nearest whole number?
Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below. Pierce got a score of 71.5; this version has a mean of 62.5 and a standard deviation of 15. Vincent got a score of 309.2; this version has a mean of 294 and a standard deviation of 19. Norma got a score of 7.96; this version has a mean of 7.2 and a standard deviation of 0.4. If the company has only one position to fill and prefers to fill it with the applicant who performed best on the aptitude test, which of applicants should be offered the job?
Woodland and Clear Beach are schools in different states. Alan is a student at Woodland and is 56 inches tall. Goran is a student at Clear Beach and is 45 inches tall. The heights of students at Woodland have a population mean of 65.2 inches and a standard deviation of 4.1 inches. The heights of students at Clear Beach have a population mean of 59.5 inches with a standard deviation of 4.9 inches. For each school, the distribution of the heights of students is clearly bell-shaped. (a) Find the z-scores of Alan's height as a student at Woodland and Goran's height as a student at Clear Beach. Round your answers to two decimal places. Z-score of Alan's height: Z-score of Goran's height: (b) Relative to his population, which student is shorter? Choose the best answer based on the z-scores of the two heights. O Alan O Goran O It is unclear which student is shorter relative to his population
In 2010, Taxi Cabs in New York City charged an initial fee of $2.50 plus $2 per mile. In equation form, fare = 2.50 +2(miles). At the end of a month a businessman collects all of his taxicab receipts and calculates some numerical summaries. The mean fare he paid was $15.45 with a standard deviation of $10.20. What are the mean and standard deviation of the lengths of his cab rides in miles? mean= type your answer... standard deviation = type your answer... miles miles
ASK YOUR TEACHER Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend tells you that the average length of trout caught in Pyramid Lake is ? = 19 inches. However, a survey reported that of a random sample of 46 fish caught, the mean length was x = 18.4 inches, with estimated standard deviation s = 3.3 inches. Do these data indicate that the average length of a trout caught in Pyramid Lake is less than ? = 19 inches? Use ? = 0.05. (A) What is the value of the sample test statistic? (Round your answer to three decimal places.) (B) Estimate the P-value. a) P-value > 0.0010 b) 0.500 < P-value < 0.0010 c) 0.125 < P-value < 0.500 d)0.100 < P-value < 0.125 e) P-value < 0.100
Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of 7 pounds. James samples 40 Americans and finds and average of 14 pounds. How likely is it to get an average of 14 pounds if he had a representative sample?
Suppose that the amount of caffeine (in milligrams) in an 16 fluid ounce energy drink can be modeled by the Normal Distribution with a mean of 250 mg and a standard deviation of 70 mg. What is the caffeine content of the 70th percentile of energy drinks? Interpret this value. The 70th percentile is 287 mg. This means that 70% of energy drinks will have caffeine less than or equal to 287 mg. The 70th percentile is 287 mg. This means that 70% of energy drinks will have caffeine greater than or equal to 287 mg. The 70th percentile is 213 mg. This means that 70% of energy drinks will have caffeine greater than or equal to 213 mg. The 70th percentile is 213 mg. This means that 70% of energy drinks will have caffeine less than or equal to 213 mg.
Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They all recently took a statistics exam and the exam scores were normally distributed in each of their classes. Lucille's class had an average grade of 85 and the standard deviation was 3. Lucille earned 89.5 on the exam. Rocio's class had an average grade of 83 and the standard deviation was 4. Rocio earned 87.4 on the exam. Cristina's class had an average grade of 76 and the standard deviation was 6. Cristina earned 79.3 on the exam. Since some professors give harder exams than others, these students decided to use statistics to figure out who did the best on their exam.
The amount of Jen's monthly phone bill is Normally distributed with a mean of $ 76 and a standard deviation of $ 11.What percentage of her phone bills are less than $ 80?
The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances that someone is earning more than $20 an hour?
A forest ranger researching ecosystem recovery following forest fires collected data on a large growth of young pine trees. The heights of the trees had a mean of 3.2 feet and standard deviation of 0.6 feet. A botany journal has asked that the data be expressed in inches. When the data are rescaled, what will be the new mean and standard deviation?

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS