A student wanted to quickly construct a 95% confidence interval for the average age of students in
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Question:
A student wanted to quickly construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 19.1 yrs, and a standard deviation of 1.5. What is the 95% confidence interval for the population mean?
Related Book For
Applied Statistics in Business and Economics
ISBN: 978-0073521480
4th edition
Authors: David Doane, Lori Seward
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