the estimated standard error and margin of error is given.
The confidence level can be changed using the <code>conf</code>
argument. If more than one categorical variable is of interest, then
<code>vars</code> can be a vector of variables and separate analyses are
performed for each variable.</p>
<p>Sometimes the goal is to estimate proportions and totals separately
for different subsets of the population – these subsets are called
subpopulations. To estimate the proportion of total lakes and in each
nitr