Question 14
A cosmetics brand “SwamiIsBeautiful” manufactures three products, “Face Creams (FC)”, “Body Lotion (BL)” and “Lip Gloze (LG)”. The company believes displaying all their products together in a single shelf at a retailer store will help boost their sales, as people tend to pick up the items together. Hence, they are currently spending a lot of money to make sure that the retailers display the products together.
However, on hearing this, Dr.Milo feels sceptical as it is counter intuitive. He feels that the sales of the products are independent. To check his theory, data in Table-3 was collected. Table-3 contains the total sales (in quantity) of the three products across retail stores. Here, the retail stores were classified in two types: “Type-1: The three products are displayed together”, “Type-2: The three products are not displayed together”. Given this information answer the given subquestions. (Note: For all questions in this comprehension, if your answer is in decimal, enter it rounded to two decimal places. For example, if your answer is “10.256”, enter it as “10.26”)
What is the Null Hypothesise for the hypothesis test that DrMilo will be performing? (choose all that is applicable)
The total sales is independent among the different products and different retail store types
The total sales is not independent among the different products and different retail store types
The total sales is uniformly distributed among the different products and different retail store types
The total sales is uniformly distributed only among the different products
The total sales is uniformly distributed only among the different retail store types
None of these