MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:4. Compute the Pearson correlation for the following data.
X Y
3
1
4
5
2
A researcher is interested in seeing if there is a significant relationship between the number of
hours of sleep a night (X) and Productivity scores (Y). She conducts a study to test her
hypothesis. Please use the data set above.
a. Use a two-tailed test with a = .05. Conduct the four steps for hypothesis testing and label
each step: Stepl, Step 2, Step 3, and Step 4.
b. Write a sentence regarding your results.
c. Calculate the regression equation for this data set.
d. What are the predicted Y scores for the following X scores:
X=1, X=7, X=10, X-12.
2364n
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