Two groups of children were given visual acuity tests. Group 1 was composed of 11 children who receive their health care from private physicians. The mean score for this group was 26 with a standard deviation of 5. Group 2 was composed of 14 children who receive their health care from the health department, and had an average score of 21 with a standard deviation of 6. Assume normally distributed populations with equal variances. Construct a confidence interval and interpret the results.
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