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4. The production manager for the XYZ manufacturing company is concerned that the customer orders are being shipped late. He asked one of his planners to check the timeliness of shipments for 1000 orders. The planner randomly selected 1000 orders and found that 120 orders were shipped late. Construct the 95% confidence interval for the proportion of orders shipped late. 5. The weight of a product is measured in pounds. A sample of 50 units is taken from a batch. The sample yielded the following results: =75 lbs. and s=10 lbs. Calculate a 99 percent confidence interval for ‚µ

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