A credit union took a random sample of 40 checking accounts. The sample mean account balance was $3021.50, and a 90% confidence interval for the mean was $2197

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Extracted text: A credit union took a random sample of 40 checking accounts. The sample mean account balance was $3021.50, and a 90% confidence interval for the mean was $2197 < u="">< $3846="" which="" of="" the="" following="" is="" a="" correct="" interpretation="" of="" the="" interval?="" about="" 9="" out="" of="" 10="" people="" have="" a="" checking="" account="" balance="" between="" $2197="" and="" $3846.="" o="" we="" are="" 90%="" confident="" that="" the="" mean="" checking="" account="" balance="" at="" this="" credit="" union="" is="" between="" $2197="" and="" $3846.="" o="" if="" we="" took="" random="" samples="" of="" checking="" accounts="" at="" this="" credit="" union,="" about="" 9="" out="" of="" 10="" of="" them="" would="" produce="" this="" confidence="" interval.="" we="" are="" 90%="" confident="" that="" the="" mean="" checking="" account="" balance="" in="" the="" us="" is="" between="" $2197="" and="" $3846.="" we="" are="" 90%="" confident="" that="" the="" mean="" balance="" for="" checking="" accounts="" in="" the="" sample="" was="" between="" 2.76="" and="" 2.88.="">