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sample of N = 25 individuals is selected from a population with a mean of 82.5. A treatment is administered to the individuals in the

sample ofN= 25 individuals is selected from a population with a mean of 82.5. A treatment is administered to the individuals in the sample, and, after treatment, the sample has a mean ofX= 84 andSS= 216.

A) Compute a 95% confidence interval for , the population mean for the treatment group.

For this sample, t*df = .

The 95% CI = ( , ).

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