Mathematics, 06.03.2020 20:02, adjjones2011

An industrial designer wants to determine the average amount of time it takes an adult to assemble a toy. Assembly times are normally distributed. A sample of 16 times yielded an average time of 19.92 minutes, with a sample standard deviation of 5.73 minutes. Construct the 95% confidence interval for the mean assembly time.

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An industrial designer wants to determine the average amount of time it takes an adult to assemble a...