The file FastFood contains the amount that a sample of 15 customers spent for lunch ($) at
Question:
The file FastFood contains the amount that a sample of 15 customers spent for lunch ($) at a fast- food restaurant:
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a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast- food restaurant, assuming a normal distribution.
b. Interpret the interval constructed in (a).
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PHStat output a Xbar t S n 709 21448 14060 15 631 787 ...View the full answer
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Related Book For 
Business Statistics A First Course
ISBN: 9780321979018
7th Edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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