Using scores for grades. At one university, the stademts are given z-scoresZ end of each semester raher than the traditional GPAS. The mean and standarddeviation of all students" cumulative GPAS, on which the z-scores are based, are 2.7and 5, respectively.a Translate cach of the following 2-4cores to the comesponding GPA:2.0,1.0,5,25.b. Saudents with zscores below -16 are put on probation. What is the correspondingprobationary GPA?e. The peesident of the university wishes to graduate the top 16% of the stadents with(approximately) should the limits be set in terms of 2-scores? In terms of GPAs? Whatasumpeion, if any, did you make about the distribution of the GPAS at the university?

a. Formula for z-score is, From the given information, the mean is 2.7 and the standard deviation…

Answered: Using scores for grades. At one…

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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list the number of expenses for each day and create a graphical representation of the gathered data. on the graphical representation you made, illustrate the following: a. mean or expected value b. variance or standard deviation
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?
Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.977.9 Mbps. The complete list of 50 data speeds has a mean of x overbarxequals=17.5417.54 Mbps and a standard deviation of sequals=18.9718.97 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between minus−2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant?
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The local pilots association examined records from this year's census of its members. Tom is a member, and the census shows that he has 4210 hours of flight experience. The census also shows that among all members of the association the mean flight experience is 3095 hours with a standard deviation of 679 hours. Find the z-score of Tom's flight experience relative to the flight experiences of all the members of the pilots association. Round your answer to two decimal places.
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