Suggestionfor research presented in empirical research studies justifies theneed for my proposed study. Its justification heavily influences thenext course of action as it shapes the kind of research to beundertaken. Studies on economics help the field further. Research inphysics and technology is opening new gateways and bringing a richerunderstanding of the universe. Recent studies serve as buildingblocks adding on to that which was already researched on.
Thereis a relation between sample size and statistical tests, in fact, acorrelation in that the sample size will increase confidence that isprecision, reduce the margin of error, power and effect size. Themore the sample size is bigger, the higher confidence one will havein the results since the underlying population provides more datathus uncertainty reduces. A larger or increased sample size givesmore data to work with thus we can detect differences in preferenceor the targeted outcome (Hidayat, et al. 2015). If in a population of50 men and 50 female, 20 and 30 of whom own a car respectively. Itcan be estimated that 40 % of the men and 60% of the women own a car.The effect size, I, the difference between the proportions is -18%.
Themargin of error is the level of precision needed therefore a narrowermargin of error requires a larger sample size.
Theimportance of planning the sample size before the collection is thatit grants efficiency in data collection (Lai, et al. 2014). Planningwill give a calculation of the sample size needed and thus help comeup with a clear budget and a clear schedule on how long the studyshould run.
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