Answered: Treatment A Treatment B Tracted C 66 76…

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

Three groups of physical therapy patients were subjected to different treatment regimens. At the end of a specificed time period each was given a test to measure effectiveness. The following data was obatined.

Treatment A: 66, 77, 72 80

Treatment B: 76, 70, 85, 78

Treatment C: 61, 72, 71, 60

Do these data provide sufficient evidence to indicate a difference among the treatments (signifigance = 0.05)? Assume a normally distributed population.

Treatment A
Treatment B
Tracted C
66
76
6)
Is there
difference
safflent endence to inclice
стод
the
Year wants
77
70
7d
at 0,05 Signity Ne
71
85
7d
60
76
80
4

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