A college administrator wants to study the average age of students who drop out of college after
Question:
A college administrator wants to study the average age of students who drop out of college after attending only one semester. He randomly selects 25 students who are in this group. Their ages are listed below:
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Because the administrator has been doing these studies in the past, he knows that age is normally distributed with a standard deviation of 0.8 years.
a. Find a 95% confidence interval for the mean age of all first semester college dropouts.
b. Interpret your results in part (a) inwords.
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a Sample mean Xbar 202 Standard deviation 08 Sample size n 25 Level o...View the full answer
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Mehwish Aziz
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Related Book For 
Business Statistics For Contemporary Decision Making
ISBN: 978-1118749647
8th edition
Authors: Black Ken
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