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An aircraft engine manufacturing company is launching a new product and wants to ensure that its tolerance on a turbine is within 0.1% of the
An aircraft engine manufacturing company is launching a new product and wants to ensure that its tolerance on a turbine is within 0.1% of the turbine's target size of 500 cm with a 99% confidence. It samples 23 turbines with an average of 500.5 cm and concludes that the 99% confidence interval is 500.2 cm to 500.8 cm. Does the confidence interval contain the target average
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