MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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ps15

A previous student of this class was curious about the relationship between number of hours a person slept before an exam
and the number of correct answers on the exam. She asked a sample of 5 people from her residence hall the number of
hours they slept before their first exam and the number of correct answers they got on their first exam. The data are:
Number of hours slept
Number of correct
before exam: X
answers on exam: Y
XY
X2
Y2
8
3
10
7
15. Evaluate the Null Hypothesis (Reject or Fail to reject?). Use the attached table. How did you make your decision? What
is your conclusion about the two variables?
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Transcribed Image Text:A previous student of this class was curious about the relationship between number of hours a person slept before an exam and the number of correct answers on the exam. She asked a sample of 5 people from her residence hall the number of hours they slept before their first exam and the number of correct answers they got on their first exam. The data are: Number of hours slept Number of correct before exam: X answers on exam: Y XY X2 Y2 8 3 10 7 15. Evaluate the Null Hypothesis (Reject or Fail to reject?). Use the attached table. How did you make your decision? What is your conclusion about the two variables?
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