Homework Help is Here – Start Your Trial Now!
Math
Statistics
Dr. Smith initially decides to curve the class scores according to the following criteria relative to the normal distribution with mean = 78 and the standard deviation = 8. So instead of having the standard 90,80,70,60 and below 60 points he will use: At or above the 90th percentile = A At or above the 80th percentile = B At or above the 70th percentile = C At or above the 60th percentile = D Below 60th percentile = F Given the above grading criteria, what are the standardized Z values for each minimum score for each grade A-F? Based on the information above, what will be the actual point score ranges for each grade?

Dr. Smith initially decides to curve the class scores according to the following criteria relative to the normal distribution with mean = 78 and the standard deviation = 8. So instead of having the standard 90,80,70,60 and below 60 points he will use: At or above the 90th percentile = A At or above the 80th percentile = B At or above the 70th percentile = C At or above the 60th percentile = D Below 60th percentile = F Given the above grading criteria, what are the standardized Z values for each minimum score for each grade A-F? Based on the information above, what will be the actual point score ranges for each grade?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question

Dr. Smith initially decides to curve the class scores according to the following criteria relative to the normal distribution with mean = 78 and the standard deviation = 8. So instead of having the standard 90,80,70,60 and below 60 points he will use:

  • At or above the 90th percentile = A
  • At or above the 80th percentile = B
  • At or above the 70th percentile = C
  • At or above the 60th percentile = D
  • Below 60th percentile = F

Given the above grading criteria, what are the standardized Z values for each minimum score for each grade A-F?

Based on the information above, what will be the actual point score ranges for each grade?

 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS