Mathematics, 25.02.2021 18:40 Naysa150724
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 92 pounds. A random sample of 70 newly manufactured cables has a mean breaking strength of 1850 pounds. Based on this sample, find a 95% confidence interval for the true mean breaking strength of all cables produced by this manufacturer. Then give its lower limit and upper limit.
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