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 = AAt or above the 80th percentile = BAt or above the 70th percentile = CAt or above the 60th percentile = DBelow 60th percentile = FGiven 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?

Given Information: Mean μ=78 Standard deviation σ=8

Answered: Dr. Smith initially decides to curve…

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

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

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution