Randomly selected students participated in an experiment to test their ability to determine when one minute (or
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Question:
Randomly selected students participated in an experiment to test their ability to determine when one minute (or sixty seconds) has passed. Forty students yielded a sample mean of 62.8 seconds. Assuming that σ = 11.9 seconds, construct and interpret 99% confidence interval estimate of the population mean of all students.
What is the 95% confidence interval for the population mean ??
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