Answered: Mornning Afternoon 60 60 66 71 66 74 66…

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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The data set “xlsx” gives the exam scores of randomly selected students in introductory statistic classes that meet in the morning and in the afternoon. Using MINITAB answer the following.

Is it reasonable to assume the data came from normal distributions? Justify your answer with appropriate plots and statistics.

(i have attached class data for you please answer )

Mornning Afternoon
60
60
66
71
66
74
66
76
67
76
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76
72
76
74
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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.

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