A random sample of 20 patrons from a Wolfville restaurant were chosen. Their tips measured in percent of their total bills had sample mean 22.21 and standard deviation 1.963. Does the data give convincing evidence that the mean percentage tip for all patrons of this restaurant is less than 20%?

A random sample of 20 patrons from a Wolfville restaurant were chosen. Their tips measured in percent of their total bills had sample mean 22.21 and standard deviation 1.963. Does the data give convincing evidence that the mean percentage tip for all patrons of this restaurant is less than 20%?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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