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Below is the formula for calculating a confidence interval for a mean and SPSS output for the age variable from a study: X + z

Below is the formula for calculating a confidence interval for a mean and SPSS output for the age variable from a study: X + z Vn Statistics What is your age? N Valid 3000 Missing Mean 54.1573 Sid. Deviation 16.15585 Please show your work where applicable. What is the 95% confidence interval for the mean age of persons in this study? What are the confidence limits

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