The following data represent job-related stress scores for a sample of n = 8 individuals. These people also are classified by salary level.
a. Convert the data into a form suitable for the point-biserial correlation.
b. Compute the point-biserial correlation for these data.
|Salary More than $40,000||Salary Less than $40,000|
To convert: The data into a form suitable for point biserial correlation.
The information is the representing the job-related stress scores for a sample of individuals.
The salary level is a dichotomous variable and it is coded as for individuals with salary more than $40,000 and for salary less than $40,000.
Two scores, X and Y, for each of the participants.
Calculating the point biserial correlation for these data produces a value for r
To find: The point biserial correlation.
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