How many states are in the us

Asocial scientist is interested in determining if there is a significant difference in the proportion of republicans between two areas of town. he takes independent random samples of 200 families in each area of town and a significance test was conducted. the p-value was 0.0156. what should be our conclusions?

Icivics worksheet : rules for running a country

The american public was excited by the invention of the railroad system. true false