NATIONAL OPEN UNIVERSITY OF NIGERIA
14/16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS
SCHOOL OF EDUCATION
MARCH/APRIL 2014 EXAMINATION
COURSE CODE: EDA844:
COURSE TITLE: STATISTICS FOR EDUCATIONAL MANAGEMENT (2units)
TIME ALLOWED: 2 HOURS
INSTRUCTION : Answer question one and any other three
1) a) What is the relevance of statistics in educational management? (10mks)
b) What are the major statistical tools needed for management decision making? (5mks)
c) Discuss the purpose of statistical models in education. (10mks)
2) a) Differentiate between population and sample (5mks)
b) Discuss the simple random sampling technique (5mks)
c) List and discuss five advantages of sampling (5mks)
3) a) Define the concept of hypothesis testing (5mks)
b) Differentiate between a null and alternative hypotheses. (5mks)
c) Discuss what determines the sample size for a study (5mks)
4) a) The commissioner of education in Lagos state is interested in the relationship between
the age of some schools and the annual maintenance cost spent on them. To determine
this relationship, four schools with 6,5,3, and 2 years old respectively were randomly selected and whose maintenance costs are N900,N800,N600,and N500 respectively per year. For the four schools, the commissioner is highly interested in knowing the Regression equation to be used for future expenses based on the age of the schools (7mks)
b) Write short notes on stratified random sampling and cluster sampling. (4mks)
c) Differentiate between systematic and sequential sampling. (4mks)
5) a) What is the role of estimation in decision making. (3mks)
b) Write short notes on mean, mode, median and range. (4mks)
c) Calculate the mean, mode, median and range from the following students’ scores in English Language.
20,50,16,75,35,40,82,47,35,50,35,10,30,60,35,50,60,15,20,90 (8mks)
You can get the exam summary answers for this course from 08039407882
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