This essay will express details along with methods of nonparametric hypothesis testing. In the latter chapters the writer will formulate a hypothesis statement regarding an issue at the central national bank. Some nonparametric methods that will be discussed are the following: sign test, Friedman Fr test, Wilcoxon Rank sum test, Kruskal-Wallis H test, and the Wilcoxom Signed Rank Test. According to Douglas Downing and Jeffrey Clark a nonparametric method is a statistical method that does not make assumptions about the specific forms of distributions and therefore does not focus on estimating unknown parameter values.
For clarification purposes of previous studies on testing hypothesis, when discovering analysis of variance regarding Teflon security of the Central National Bank; assumptions were made based on the populations that were being sampled which were given distributions that were normal. The objective is to find the parameters, therefore, one could estimate how effective the trainings were from the samples given than proceed with finding out the result. Using nonparametric methods are different from the usual distributions and parameters provided in previous research studies.
Central National Bank has to make evaluate survey tests. The main objective of this test is to formulate a survey that is considered an easy survey to complete. In this research study a sign test is the best method to obtain the most accurate results. The administration at Central National Bank has decided to ask 20 individuals if they prefer to complete a survey that has a 1, 2, 3, considering disagree to agree options or a true or false survey. The results will be determined in a plus or minus sequence. The plus sign will indicate results from the survey agree to disagree, and the minus sign will determine the results from the true of false survey. The results are as follows: +,-,+,+,+,+,-,+,+,-,+,+,+,-,+,+,-,+,+,+. Out of the 20 people that completed...