MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Parameters and hypotheses For each of the following
situations, define the parameter (proportion or mean) and
write the null and alternative hypotheses in terms of param-
eter values. Example: We want to know if the proportion of
up days in the stock market is 50%. Answer: Let p = the
proportion of up days. Ho: p = 0.5 vs. HA: p ≠ 0.5.
a) A casino wants to know if their slot machine really
delivers the 1 in 100 win rate that it claims.b) A pharmaceutical company wonders if their new drug
has a cure rate different from the 30% reported by the
placebo.
c) A bank wants to know if the percentage of customers
using their website has changed from the 40% that
used it before their system crashed last week.
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