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Mathematics, 02.07.2020 06:01 kenyasutton10
4. An organizational psychologist measures levels of job satisfaction in a sample of 30 participants. To
measure the variance of job satisfaction, it is calculated that the SS = 120 for this sample.
a. What are the degrees of freedom for the variance?
n= Degrees of Freedom (df): value - 1
The degrees of freedom of an estimate of variance is equal to N-1
The "N" refers to the number of observations
Formula:
1) Sample size of N = 30 / Value or SS/n = variance
2) SS = 120/30 = 4 (df)
3) 30-1= 29 degrees of freedom
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