An instructor calculated the average score and the sample standard deviations of the scores of his class and used the following grading scale: A At least 2 standard deviations above the mean B Between 1 and 2 standard deviations above the mean C Within one standard deviation of the mean D Below one standad deviation of the mean [YOU HAVE ONLY ONE TRY FOR THIS QUESTION] When the grades were announced the students were unhappy and he proposed the following alternative: Add 10 points to each student again calculate the mean and s for the new scores and then follow the same scheme. ✓Do you think this scheme will improve the grades??
An instructor calculated the average score and the sample standard deviations of the scores of his class and used the following grading scale: A At least 2 standard deviations above the mean B Between 1 and 2 standard deviations above the mean C Within one standard deviation of the mean D Below one standad deviation of the mean [YOU HAVE ONLY ONE TRY FOR THIS QUESTION] When the grades were announced the students were unhappy and he proposed the following alternative: Add 10 points to each student again calculate the mean and s for the new scores and then follow the same scheme. ✓Do you think this scheme will improve the grades??
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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true or false?
![An instructor calculated the average score and the sample standard deviations of the scores of his class and used the following grading scale:
A|At least 2 standard deviations above the mean
B Between 1 and 2 standard deviations above the mean
C Within one standard deviation of the mean
D Below one standad deviation of the mean
[ YOU HAVE ONLY ONE TRY FOR THIS QUESTION] When the grades were announced the students were unhappy and he proposed the following alternative: Add 10 points to each student again
calculate the mean and s for the new scores and then follow the same scheme.
Do you think this scheme will improve the grades??](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F144161ac-559f-4b1a-80a0-0fffa7827db1%2F84744d9d-b3e1-4926-a604-8051c9829201%2Fjis0xek_processed.png&w=3840&q=75)
Transcribed Image Text:An instructor calculated the average score and the sample standard deviations of the scores of his class and used the following grading scale:
A|At least 2 standard deviations above the mean
B Between 1 and 2 standard deviations above the mean
C Within one standard deviation of the mean
D Below one standad deviation of the mean
[ YOU HAVE ONLY ONE TRY FOR THIS QUESTION] When the grades were announced the students were unhappy and he proposed the following alternative: Add 10 points to each student again
calculate the mean and s for the new scores and then follow the same scheme.
Do you think this scheme will improve the grades??
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