Question: Problem 1 H&R Block randomly selected tax returns it prepared this year and recorded the amount of the Federal tax refund each client received (a

Problem 1

H&R Block randomly selected tax returns it prepared this year and recorded the amount of the Federal tax refund each client received (a negative amount indicates that Federal taxes were owed). The sample data are given below.

$5513, $6683, $6889, $2258, $2234, $1127, $3673, $5114, $3329, - $731, $2250, $2934, $2528, $647, $2361, - $1718, $2900, $3824, $4424, $2599, $1137, $5058, $3331, $3261, - $2046, $419, $1053, $274, - $836, $2108, $1637, $2815, $596

Estimate the mean Federal tax refund received this year by H&R Block clients using this sample (include all positive and negative amounts) and a 95% confidence interval. Express the confidence interval both symbolically and verbally.

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