Yvonne is a good student, but at times she doesn't get enough sleep. She hypothesizes that when she gets more sleep she does better on tests. To test her hypothesis, she tracked how she did on a number of tests, based on how many hours of sleep she got on the night previous. She inputs the following data into her excel file to compute the correlation coefficient equation. Hours of Sleep Test Score y 81 80 75 5 65 91 6. 80 Find the relationship between the variables using Pearson (r) and predict her Test Score when her sleep was 4 hours.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Yvonne is a good student, but at times she doesn't get enough sleep. She hypothesizes that when she gets more sleep she does better
on tests. To test her hypothesis, she tracked how she did on a number of tests, based on how many hours of sleep she got on the night
previous. She inputs the following data into her excel file to compute the correlation coefficient equation.
Hours of Sleep
Test Score
y
81
80
75
5
65
91
6.
80
Find the relationship between the variables using Pearson (r) and predict her Test Score when her sleep was 4 hours.
Transcribed Image Text:Yvonne is a good student, but at times she doesn't get enough sleep. She hypothesizes that when she gets more sleep she does better on tests. To test her hypothesis, she tracked how she did on a number of tests, based on how many hours of sleep she got on the night previous. She inputs the following data into her excel file to compute the correlation coefficient equation. Hours of Sleep Test Score y 81 80 75 5 65 91 6. 80 Find the relationship between the variables using Pearson (r) and predict her Test Score when her sleep was 4 hours.
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