The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 98 pounds. A random sample of 50 newly manufactured cables has a mean breaking strength of 1700 pounds. Based on this sample, find a 99% confidence interval for the true mean breaking strength of all cables produced by this manufacturer.  A.  What is the lower limit of the 99% confidence interval? B.  What is the upper limit of the 99% confidence interval?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.