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A group of engineers developed a new design for a steel cable They need to...

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A group of engineers developed a new design for a steel cable They need to estimate the amount of weight the cable can hold The weight limit will be reported on cable packaging The engineers take a random sample of 45 cables and apply weights to each of them until they break The 45 cables have a mean breaking weight of 715 4 lb The standard deviation of the breaking weight for the sample is 18 5 lb Find the 99 confidence interval to estimate the mean breaking weight for this type cable Use the unrounded values in Excel to find the answers to 2 3 and 4 1 The t value is Put the letter as answer choice in the answer box A 2 6923 B 2 6896 C 2 4141

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