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consider the data of the life cycle (measured in day) of motors given in below. obtain a 95% confidence interval for the mean life cycle

consider the data of the life cycle (measured in day) of motors given in below. obtain a 95% confidence interval for the mean life cycle of a motor and interpret the 95% confidence interval. 1 4 5 21 22 28 40 42 51 53 58 67 95 124 124 160 202 260 303 363 41 40 50 201 28 400 429 501 539 and 80

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