In January 2014 AP-GEK polled (on randomly selected U. S. adults to find if people were more
concerned with privacy or security. Privacy concerns out
Weighed concerns about being safe from terrorists for 646 oug
of the 1060 polled. Of the 1060 adults, about 180 are 6S and
older and their concerns may be different from the rest of the
population.
a) Do you expect the 95% confidence interval for the true
proportion of those 65 and over who are more concerned
with privacy to be wider or narrower than the 95% confi-
dence interval for the true proportion of all U. S. adults?
Explain.
b) If 13% of the 1060 polled were 18-24 years old, would you
expect the margin of error for this group to be larger or
smaller than for the 65 and older group? Explain.