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. Provide your answer below: