19d. SP = SSxy (use 3 dec. during calculation; report 1 dec place; include negative sign if appropriate) ______________ 19e. r = (report 3 dec places; include negative sign if appropriate) _______________

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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19d. SP = SSxy (use 3 dec. during calculation; report 1 dec place; include negative sign if appropriate) ______________

19e. r = (report 3 dec places; include negative sign if appropriate)

_______________

 

 

Q19 [a] A researcher measures the relationship between the number of interruptions in class
and time spent on task [in minutes]. Compute the Pearson correlation coefficient for the data
below. Use your own paper to calculate the correlation coefficient; hang onto to it just in case.
Note: The etext table is incorrect because of faulty formatting. Use the r distribution available
in Blackboard.
Below you will enter:
2.1 Mean for number of interruptions (x)
2.2 SS, for number of interruptions
2.3 Mean for time spent on task (y)
2.4 SS,for time spent on task
2.5 Sum of Products (SP, SSæy)
2.6 Correlation coefficient (r)
Transcribed Image Text:Q19 [a] A researcher measures the relationship between the number of interruptions in class and time spent on task [in minutes]. Compute the Pearson correlation coefficient for the data below. Use your own paper to calculate the correlation coefficient; hang onto to it just in case. Note: The etext table is incorrect because of faulty formatting. Use the r distribution available in Blackboard. Below you will enter: 2.1 Mean for number of interruptions (x) 2.2 SS, for number of interruptions 2.3 Mean for time spent on task (y) 2.4 SS,for time spent on task 2.5 Sum of Products (SP, SSæy) 2.6 Correlation coefficient (r)
Number of
Time Spent on
Interruptions
Task
8
18
3
40
6.
20
2
32
Transcribed Image Text:Number of Time Spent on Interruptions Task 8 18 3 40 6. 20 2 32
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