Answered: 200 Yes INo 159 156 143 153 150 140 136…

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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Question

The Internet The NAEP report described in Exercise 39
compared science scores for students who had home
Internet access to the scores of those who did not, as
shown in the graph. They report that the differences are
statistically significant.
a) Explain what “statistically significant” means in this
context.
b) If their conclusion is incorrect, which type of error did
the researchers commit?

c) Does this prove that using the Internet at home can im-
prove a student’s performance in science?

200
Yes
INo
159
156
143
153
150
140
136
100
Grade 4
Grade 8
Grade 12
Mean Score

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