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A survey of 14 students indicated that their mean income was $12963. Assume the population standard deviation is $4264. What is the lower bound
A survey of 14 students indicated that their mean income was $12963. Assume the population standard deviation is $4264. What is the lower bound of a 99% confidence interval for the population mean Income? (Don't include a dollar sign in your answer-report the number only)
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