Answered: One sided or two? In each of the…

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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One sided or two? In each of the following situations, is
the alternative hypothesis one-sided or two-sided? What
are the hypotheses?
a) A business student conducts a taste test to see whether
students prefer Diet Coke or Diet Pepsi.
b) PepsiCo recently reformulated Diet Pepsi in an attempt
to appeal to teenagers. The company runs a taste test to
see if the new formula appeals to more teenagers than
the standard formula.

c) A budget override in a small town requires a two-
thirds majority to pass. A local newspaper conducts a

poll to see if there’s evidence it will pass.
d) One financial theory states that the stock market will

go up or down with equal probability. A student col-
lects data over several years to test the theory.

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