Answered: A group of university researchers… | bartleby

MATLAB: An Introduction with Applications

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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A group of university researchers wanted to determine the relationship that exists between
the number of hours spent by a student in social media in a day (X) and their grade weighted
average (Y). Twelve randomly selected students produced the following findings:
Number of
GWA
Hours
4.0
95
8.0
85
87
89
91
85
89
86
84
96
82
85
7.0
6.5
5.5
9.0
4.0
10.0
7.5
2.0
12.0
9.0

4. What is the equation of the regression line? [Select]
5. How can we interpret the slope of the regression line?
Select]
î
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Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and listed in a data set. Results are shown in the accompanying display. Is there sufficient evidence to support Correlation Results the claim that there is a linear correlation between the weights of bears and their chest sizes? When measuring an anesthetized bear, is it easier to measure chest size than weight? If so, does it appear that Correlation coeff, r: 0.959614 a measured chest size can be used to predict the weight? Use a significance level of = 0.05. Critical r: +0.2680855 P-value (two tailed): 0.000 Но: Р H1:P (Type integers or decimals. Do not round.) Identify the correlation coefficient, r. (Round to three decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed.) O A. There is one critical value at r= . B. There are two critical values at r= ± Is there sufficient evidence to support the claim that there is a linear correlation between…

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