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Business Analytics · Quiz 1 · 13 Jul 2025 · May 2025 term

Question 13: What is the value of the computed test statistic for the…

Question 13

+3 marksNumerical answer

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 value of the computed test statistic for the hypothesis test that DrMilo will perform to check if his intuition is correct?

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Correct answer: 20 (accepted within ±2)

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Question 13 of 15 in the IIT Madras BS Business Analytics (Business Analytics) Quiz 1 paper sat on 13 Jul 2025, in the May 2025 term (IIT M DIPLOMA AN EXAM QDD2 13 July 2025). It carries 3 marks.

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