blondielocks2002
24.07.2020 •
Mathematics
The 2003 Statistical Abstract of the United States reported the percentage of people years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of
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Ответ:
i would honestly think the answer is d
a many companies have become more cost-efficient.
b risk has shifted from the worker to the company.
c in many cases, income has decreased.
d both a and c, but not b.
hopefully this