MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A survey asked, "How many tattoos do you currently have on your body?" Of the
1202
males surveyed,
180
responded that they had at least one tattoo. Of the
1034
females surveyed,
147
responded that they had at least one tattoo. Construct a
95%
confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval.Let p 1 represent the proportion of males with tattoos and
p 2 represent the proportion of females with tattoos. Find the
95%
confidence interval for
p 1 -p 2p
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