BS 5/4 Semester/Term UOS — University of Sargodha
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My of Sare
UNIVERSITY OF SARGODHA
Department of Social Work
Statistics and Data Analysis in Social Work
Exam: Mid-Term Examination
Code: SOWK-6316
Class: BS 5th Intake, Semester 4
Total Marks: 30
Time: 1 hour
Q no 1: The following frequency distribution shows the weekly working hours of
50 social workers. Calculate the variance of the grouped data.
Q no 2: A social welfare organization claims that its workers handle an average
of 50 cases per month. A random sample of 64 workers has a mean of 54 cases.
The population standard deviation is known to be 12 cases. At the 5% level
of significance, test whether the population mean differs from 50 cases.
/10
Hours
10-20
20-30
30-40
40-50
50 - 60
Frequency
9
16
12
/10
Q no 3: The following grouped frequency distribution represents the number
of families assisted per month by social workers. Calculate the median.
/10
Families
0 - 10
10-20
20 - 30
30 - 40
40 - 50
Frequency
4
16
14
