TRThe mean finish time for a yearly amateur auto race was 186.77 minutes with a standard deviation of 0.334 minute. The winning car, driven by Ron, finished in 185 74minutes The previous year's race had a mean finishing time of 110.5 with a standard deviation of 0.128 minute. The winning car that year, driven by Susan, finished in110.21 minutes. Find their respective z-scores. Who had the more convincing victory?.....Ron had a finish time with a z-score ofSusan had a finish time with a z-score of(Round to two decimal places as needed.)Which driver had a more convincing victory?O A. Ron had a more convincing victory because of a higher z-score.O B. Ron had a more convincing victory because of a lower z-score.O C. Susan a more convincing victory because of a lower Z-score.O D. Susan a more convincing victory because of a higher z-score.O Time Remaining: 03:54:42NextUpper limit =0.2386 + 2.58* SQRT(0.2386*0.7614 /700) =0.28Confidence Interval is (0.197, 0.28 )DEC15étvMacBook AirDDF7F2F3F5F6&23$89H.C.B.W N

Formula for z score : z = x-μσ

Answered: The mean finish time for a yearly…

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

Suppose that Jett achieves a score of 1250 on the SAT, and his sister Kate scores 29 on the ACT. The SAT scores are normally distributed with a mean of 1100 and standard deviation of 250. The ACT scores are normally distributed with a mean of about 20 and standard deviation of 5. Who did better, relative to their peers?
A student scored 66 on a general science test where the class mean and standard deviation were 82 and 8, respectively; he also scored 53 on a psychology test where the class mean and standard deviation were 58 and 3, respectively. In which class was his relative position higher?
You have a sample of 48 randomly selected Vancouverites. On average (the sample mean), the people in your sample spent 425 hours eating food in 2020. The least time a person in the sample spent eating food in 2020 is 367 hours and the most time a person in the sample spent eating food in 2020 is 484 hours. What would be your best guess about the population standard deviation of the time a Vancouverite spent eating food in 2020? Give the number and explain (including assumptions you make about the population distribution).
A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. c. What proportion of people scored in the A range (90 or above)?d. What proportion of people failed the exam (60 or below)?
In a certain test in English, the mean score of a group of 200 students was 56 and the standard deviation was 12. In a test in chemistry, the mean was 68 and the standard deviation was 8. If a student scored 65 in English and 75 in chemistry, in which test did she perform better?
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
Todd just got back his exam grades in three classes. In biology the class mean was 75.80 with a standard deviation of 5.15, Todd got an 84.00. In political science the class mean was 84.00 with a standard deviation of 5.50, Todd got an 84.00. In economics the class mean was 87.50 with a standard deviation of 5.60, Todd got a 84.00. 4. Which class showed the highest variability in scores? 5. Which class showed the lowest variability in scores? 6. Which class had the highest average test score?
Sarah was told that she scored two standard deviations above the mean on her PSYCÓ 104 final exam. Her instructor posted the class distribution and revealed the mean was 65% and the standard deviation was 10%. What was Sarah's test result? cro O a. 55% cro O b. 45% cro O c. 85% crc O d. 75% crc O e. 55%
Valentina obtained a score of 75 in a science exam and 90 on her English exam. on which test did she show better performance to the rest of the class? consider the mean and standard deviation values for science is 80 and 8 respectively and for English are 140 and 25.
Use z scores to compare the given values. The tallest living man at one time had a height of 245 cm. The shortest living man at that time had a height of 60.8 cm. Heights of men at that time had a mean of 173.94 cm and a standard deviation of 6.92 cm. Which of these two men had the height that was more extreme?
Raul received a score of 79 on a history test for which the class mean was 70 with a standard deviation of 7. He received a score of 79 on a biology test for which the class mean was 70 with standard deviation 9. On which test did he do better relative to the rest of the class? A. biology test B. history test C. the same

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