Use the correct critical value z to calculate the margin of


In a survey conducted as an SRS of size 685, students were asked about their credit card balance. Assume that the standard deviation of the card balance among all undergraduates is $1206. Use the correct critical value z* to calculate the margin of error for the 95% confidence interval for the mean credit card debt among all undergraduates.

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Basic Computer Science: Use the correct critical value z to calculate the margin of
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