According to World Health Organization (WHO), the recommended limit for a noise level inside a classroom is 35 dBA. However, nine out of ten schools fail to meet this recommendation. A researcher wishes to conduct a study relevant to the prior information, but as a gap, he decides to include the area (in square meters) of every classroom and how it could possibly affect the resulting noise level. He selects 17 classrooms at random, and the noise levels are recorded in the next slide. a. Find the regression equation and construct the scatter plot diagram. b. Predict the noise level if a classroom has an area of 85.97 m2 . c. Calculate the coefficient of determination and interpret the findings.
According to World Health Organization (WHO), the recommended limit for a noise level inside a classroom is 35 dBA. However, nine out of ten schools fail to meet this recommendation. A researcher wishes to conduct a study relevant to the prior information, but as a gap, he decides to include the area (in square meters) of every classroom and how it could possibly affect the resulting noise level. He selects 17 classrooms at random, and the noise levels are recorded in the next slide. a. Find the regression equation and construct the scatter plot diagram. b. Predict the noise level if a classroom has an area of 85.97 m2 . c. Calculate the coefficient of determination and interpret the findings.
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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According to World Health Organization (WHO), the recommended limit for a noise level inside a classroom is 35 dBA. However, nine out of ten schools fail to meet this recommendation. A researcher wishes to conduct a study relevant to the prior information, but as a gap, he decides to include the area (in square meters) of every classroom and how it could possibly affect the resulting noise level. He selects 17 classrooms at random, and the noise levels are recorded in the next slide.
a. Find the regression equation and construct the
b. Predict the noise level if a classroom has an area of 85.97 m2 .
c. Calculate the coefficient of determination and interpret the findings.
d. Calculate the coefficient of alienation and interpret the findings.
Use Excel
Transcribed Image Text:Room
1
3
4
6.
7
8
9.
Area
74.36
62.97
69.54
57.11
66.83
52.39
79.17
64.42
68.73
Noise
58.27
71.44
63.12
76.71
72.00
70.68
54.30
51.29
69.57
Level
Transcribed Image Text:Room
10
11
12
13
14
15
16
17
Area
75.99
81.31
51.65
64.18
71.92
67.41
73.25
58.04
Noise
53.47
60.62
73.84
69.88
53.27
72.06
59.13
75.20
Level
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