Estimation: Confidence Interval for the mean.
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In a certain manufacturing process, the diameter of holes drilled in a steel plate is a normally distributed random variable. The process standard deviation is known to be s =0.005 cm. A sample of 15 plates shows a mean hole diameter of 2.475 cm. Find the 95 percent confidence interval for Mean (M).
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95 percent confidence interval for Mean has been calculated. The expert provides estimations.
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In a certain manufacturing process, the diameter of holes drilled in a steel plate is a normally distributed random variable. The process standard deviation is known to be s =0.005 cm. A sample of 15 plates shows a mean hole diameter of 2.475 cm. Find the 95 ...
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