Question
An industrial designer wants to determine the average amount of time it takes an adult to assemble an easy-to-assemble toy. A sample of 12 times
An industrial designer wants to determine the average amount of time it takes an adult to assemble an "easy-to-assemble" toy. A sample of 12 times yielded an average time of 19.92 minutes, with a sample standarddeviation of 5.73 minutes. Assuming normality of assembly times, provide a 95% confidence interval forthe mean assembly time.
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Probability and Random Processes With Applications to Signal Processing and Communications
Authors: Scott Miller, Donald Childers
2nd edition
123869811, 978-0121726515, 121726517, 978-0130200716, 978-0123869814
