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Recent questions tagged telegram-57188

(chatquestion)...6. The operation manager of a plant that manufactures tires want to compare the actual inner diameter of two grades tires, each of which is expected to be 575 millimeters. A sample of five tires of each grade has following result Grade X 568 570 575 578 584 Grade Y 573 574 575 577 578 a. Find mean and standard deviation of each grade. b. Which grade of tires is providing better quality?

asked Feb 16, 2020 by balaji.thirumalai

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