What do you mean by the term data analysis? Illustrate with suitable illustrations.
Describe the significant phases in data analysis. Give some illustrations.
Describe the significance of graphs, diagrams, averages, standard deviation, correlation coefficient and tests of hypothesis in the data analysis. Give some illustrations.
Define the term hypothesis and describe the steps in testing a hypothesis.
What are the applications of t, z, ανδ χ2 tests in business researches? Describe with exs.