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Part 0 2 9 Part 1 of 2 10 11 Hip surgery In a sample of 129 hip surgeries of a certain type the average

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Part 0 2 9 Part 1 of 2 10 11 Hip surgery In a sample of 129 hip surgeries of a certain type the average surgery time was 138 1 minutes with a standard deviation of 23 3 minutes 12 a Construct a 99 confidence interval for the mean surgery time for this procedure Round your answers to one decimal place A 99 confidence interval for the mean surgery time for this procedure is 13

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