October 15, 2020 What is mean by the correlation coefficient? To obtain a measure of the relation between X and Y independent of units of measurements. Karl Pearson in 1890 developed a measure of…

October 10, 2020 Regression Analysis Regression Analysis is used for finding out the relationship between a dependent variable and one or more than one independent variable. The functional relationship…

September 29, 2020 What are the Nonparametric tests? Why we need nonparametric statistical analysis? What are the Nonparametric tests?. Parametric statistical methods are based on particular assumptions about the population in which…

September 21, 2020 Null Hypothesis Why we need a null hypothesis test?. Hypothesis testing is an important stage in statistics. The test evaluates two mutually exclusive statements about a…