Susie and Joan complain that they make very little money at their jobs; they are both radio announcers.The population of 27,000 radio announcers averages $27,500 per year with a standard deviation of$5,300. Susie makes $25,000 per year and Joan makes $32,500. What is the z-score for Joan's salary?

Answered: Susie and Joan complain that they make…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a standard deviation of 4.8. A student takes both tests while a junior and scores 1130 on the SAT and 25 on the ACT. Compare the scores. The two scores are statistically the same. The two scores are statistically the same. You cannot determine which score is better from the given information. You cannot determine which score is better from the given information. A score of 25 on the ACT test was better. A score of 25 on the ACT test was better. A score of 1130 on the SAT test was better.
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?
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On a nationwide math test, the mean was 57 and the standard deviation was 4. If Roberto scored 90, what was his z-score?
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?
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Nathan takes the State Aptitude Assessment, which has a mean of 350 and a standard deviation of 50. His brother Kyle takes the Regional Readiness Test, which has a mean of 300 and a standard deviation of 45. If Kyle's score was 375, what is the cooresponding z score? a. +2.22 b. +1.00 c. +1.67 d. -1.67
Four students take tests. The results of each test for the class and the student are listed in the choice. Which student has the highest Z Score? a.John who scored an 85 and whose class averages 77 with a standard deviation of 4. b.Tammy who scored an 86 and whose class averages 82 with a standard deviation of 3. c.Rob who scored an 87 and whose class averages 73 with a standard deviation of 11. d.Sandra who scored a 90 and whose class averaged an 81 with a standard deviation of 7.
According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches. If Zsike is 67 inches tall, what is her z-score?
The college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. If the mean score was ? = 152 with standard deviation ? = 21, what was the final exam score for each student? (Round your answers to the nearest whole number.) Robert _______ Juan __________ Haley ________ Joel ________ Jan ________ Linda _________

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