Nonparametric methods

  Question 1 Compare and contrast four nonparametric tests performed in biostatical studies. Include an example of how public health researchers can use each test. How do they compare with parametric test? Your response must be at least 500 words in length with in-text citations and references Question 2 Discuss the role of Biostatistical analysis in public health research. Your response must be at least 150 words in length. Question 3 Explain how to formulate scientific question into statistical hypothesis. Your response must be at least 150 words in length. Question 4 The Kruskal-Wallis test is used in place of the one-way analysis of variance (ANOVA). What are the four assumptions required for the application of the Kruskal-Wallis test?