3. A branded apparel producer desires to understand whether a person's occupation has any signicant impact on the person's primary choice of clothing. To determine this, they have conducted a suitable research. Three occupations were identied as being primary purchasers of their clothing line. These were: a. Working Professionals (WP) b. Businesspersons (B) c. Students (S) The lines of clothing identied were: a. Formal-wear b. Sharp casuals c. Traditional-wear In the research, respondents were asked to indicate: i. Their Occupation ii. Their most purchased clothing type The data showing frequencies of occurrences were as follows: Clothing type Formalwear Sharp casuals Traditional-wear Total Occupation Working 160 120 80 360 Professionals (WP) Businesspersons (B) 80 60 60 200 Students (S) 80 100 60 240 Total 320 280 200 800 Answer the following questions based on the data table above: a) Frame a suitable null hypothesis to fulll the rm's research objective. b) Evaluate the null hypothesis using a suitable statistical test. (Given that the required critical value = 9.487729). c) What conclusions can you draw from your analysis? State them clearly for each occupational group. (6 marks)