The breaking strength of cables produced by a certain manufacturer have a standard deviation of 86 pounds. A random sample of 50 newly manufactured cables has a mean breaking strings of 1950 pounds....

The breaking strength of cables produced by a certain manufacturer have a standard deviation of 86 pounds. A random sample of 50 newly manufactured cables has a mean breaking strings of 1950 pounds. Based on the sample find a 95% confidence interval for the true mean breaking strength of all cables produced by this manufacturer. Then give us lower limit an upper limit. Carrier intermediate computations to at least three decimal places. Round your answers 21 Decimal Pl. If necessary consult a list of formulas