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Statistics for Data Science II · End Term · 14 Sept 2025 · May 2025 term · Set 1

Question 2: A supermarket manager claims that the average billing tim…

Question 2

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A supermarket manager claims that the average billing time for customers is 12 minutes with a known standard deviation of 3.5 minutes. To verify this claim, a random sample of 49 customers was studied, showing an average billing time of 12.9 minutes. Let the null and alternative hypothesis be: ; . Find the P-value. Enter the answer correct to two decimal places.

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Question 2 of 27 in the IIT Madras BS Statistics for Data Science II (Stats 2) End Term paper sat on 14 Sept 2025, in the May 2025 term (Statistics2 14 Sep 25 (Session 2)). It carries 3 marks.

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