12. A researcher is interested in the cumulative grade points averages (CGPA) of
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12. A researcher is interested in the cumulative grade points averages (CGPA) of the students who enrolled in the three different Master programs; namely M701, M702 a) State the population and variable of the interest b) Determine the sampling frame and M703. an appropriate sampling technique that should be used for this study and give two reasons for using this technique d) Suppose the researcher has determined the CGPA of each student of those three programs. Would this represent a census of sample? Give your reason 13. A large firm is considering implementing a new salary scheme and wishes to determine the proportion of the employees that agree with the new policy. The firm has 20 branches located throughout Malaysia. A sample of five branches was selected and the opinions of all employees regarding the new scheme were obtained. a) Describe the population and the sample of this study. b) Explain the sampling frame for the study. c) What the type of statistics was used in the study d) Identify the type of variable and the scale of measurement used in the study. e) Describe the sampling technique used in the study. f) If systematic sampling was employed to select five branches from 20, explain how it will be conducted. Determine the most appropriate data collection method to be used in the study, give one advantage and one disadvantage of using this method. g)Explanation / Answer
Q11.
a) The sampling techiniques used here is quota sampling. In which samples are gathered from a specific groups or subgroups.
b) This is an example of systematic random sampling in which every seventh customer is selected in the sample.
c)This is a case of simple random sampling in which random numbers are used to draw a random sample.
d) This is an example of systematic random sampling in which every hundreth hamburger manufacturer checked is selected in the sample.
e) The sampling technique used here is stratified random sampling.Here whole population is divided into four strata which are internally homogeneous. From each stratum 10 sample are selected.
f) The sampling Technique used here is cluster sampling in which whole population is divided into two clusters. From which randomsample are taken.
g)The sampling procedure used here is multistage sampling.
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