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In a simple random sample of 50 electronic components produced by a certain method, the mean lifetime was 938 hours. Assume that component lifetimes are

In a simple random sample of 50 electronic components produced by a certain method, the mean lifetime was 938 hours. Assume that component lifetimes are normally distributed with population standard deviation 269 hours. What is the upper bound of the 95% confidence interval for the mean lifetime of the components? Round your answer to the nearest integer.

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