Sunday, February 10, 2019

stata command for upper tail confidence interval

Construct an upper 95% confidence interval for the mean of full score IQ for lead exposure group 1, and a lower 95% confidence interval for the mean of full score IQ for lead exposure group 2 (medium exposure). This is the question but i'm having a hard time finding the stata command for upper and lower 95% confidence interval. Any help will be much appreciated

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