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OpenStudy (anonymous):
A random sample of 40 four-year-olds attending day care centers provided yearly tuition average of $3887 and the population standard deviation of $530. What is the best estimate for the average yearly tuition for four-year-olds attending day care?
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OpenStudy (anonymous):
Look at http://www.dummies.com/how-to/content/how-to-calculate-a-confidence-interval-for-a-popul.html
OpenStudy (anonymous):
thank you
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