Charlotte Pipe and Foundry has commissioned a study to estimate the proportion o

Question

Charlotte Pipe and Foundry has commissioned a study to estimate the proportion of their PVC sewer main pipes that can be expected to lose more than 0.5 mm in wall thickness due to corrosion in their rst 5 years of use. Engineers have randomly selected 100 pipe segments for inspection. Of those pipes, 4% showed a wall thickness oss of greater than 0.5 mm. The population of interest to Charlotte Pipe and Foundry is: All Charlotte Pipe and Foundry PVC sewer main pipes. The engineers who work for Charlotte Pipe and Foundry All Charlotte Pipe and Foundry PVC sewer main pipes that have more than 0.5 mm wall thickness loss. The 4 pipes found to have more than 0.5 mm wall thickness loss. All 100 pipes inspected

Explanation / Answer

Option C is Correct. All Charlotte Pipe and Foundary PVC sewer main pipes that have more than 0.5 mm Wall thickness loss

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