Every year sixth-grade students in Ohio schools take proficiency tests. The following list is of sixth-grade reading score changes from the prior year. Negative values indicate a decrease in score, positive values show an increase, and a zero shows no change from the prior year.

Construct a 95% confidence interval for the median change in reading scores.

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-4 -4-10-930 6183 2-5-6 12 -9 -2 19 6- -14 -135 12 -8 6-3 -8-1416 -6 216 -7 6 1 6 8 4 13 9-12 12-10