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A sample of 300 metal parts for a manufactured product were tested for fracture strength. They wanted to estimate the population proportion of these parts
A sample of 300 metal parts for a manufactured product were tested for fracture strength. They wanted to estimate the population proportion of these parts that fractured during testing. In the sample, 45 fractured during the test. Construct AND INTERPRET the 90% confidence interval for the population proportion. Show 2 or more decimal digits in your confidence interval endpoints. Use the formula n(p) 10 and n(1-p) 10
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