III. PROBLEM SOLVING. Solve the following word problems. Show a complete, pertinent solution for every problem. 1. The tensile strength (in KSI) of stainless-steel wires made by an existing process is normally distributed with a mean of 350 KSI. A batch of wires is made by a new process, and a random sample consisting of 25 measurements gives an average strength of 353 KSI and standard deviation of 5 KSI. Compute a 95% confidence interval estimate for the mean strength of stainless-steel wires made by the new process.

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A: 6

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