I

The formula used for the calculation of sample size in this research is (Yamane 1967:886) Where n= sample size . N=population size. e= level of precision. When this formula is used a representative sample size of 333 is needed for a population of 2000 with precision levels of 5% the level of confidence is 95% and a P value of 0.5. Appendix 2 ................
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