Gary is studying the prevalence of regional dialects. He surveyed
351
people in a region and asked what words they used for certain things.
292
of the respondents referred to soft drinks as “pop,” as opposed to “soda” or “cola.” Create a
90
%
confidence interval for the proportion of people in this region who refer to soft drinks as “pop.” Use Excel to create the confidence interval, rounding to four decimal places.
