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If the estimated standard error of the mean for low income respondents is 0.26, what is the upper limit of a confidence interval for

If the estimated standard error of the mean for low income respondents is 0.26, what is the upper limit of a confidence interval for a confidence level of 95%? Round to the second decimal place (0.12). Years of Education by Income Standard Mean Cases Deviation Low 12.11 2.83 122 Income Middle 13.01 2.91 541 Income High 15.44 2.83 54 Income Total 717

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