Solution: To determine whether the pipe welds in a nuclear
Chapter 0, Problem 10.3(choose chapter or problem)
To determine whether the pipe welds in a nuclear power plant meet specifications, a random sample of H0: p .1, Ha: p 125 H0: m 123, Ha: m 125 H0: m 123, Ha: m 123 H0: p .4, Ha: p .6 H0: m 15, Ha: m 15 x 50 welds is selected and tests are conducted on each weld in the sample. Weld strength is measured as the force required to break the weld. Suppose that the specifications state that the mean strength of welds should exceed 100 lb/in.2 . The inspection team decides to test versus . Explain why this alternative hypothesis was chosen rather than .
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