Confidence interval for the mean diameter
A company is testing a machine that produces balls. A sample of 27 balls has (for the diameters) a sample mean of 3.5025 inches and sample standard deviation of 0.01 inches.
Find a 99% confidence interval for the mean diameter of the produced ball.
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A company is testing a machine that produces balls. A sample of 27 balls has (for the diameters) a sample mean of 3.5025 inches and sample standard deviation of 0.01 inches. Find a 99% confidence interval for the mean diameter of the produced ball.
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