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A sample of 96 observations showed an average of 25 and a standard deviation of 16. Construct the 90% confidence interval for the population mean.

A sample of 96 observations showed an average of 25 and a standard deviation of 16. Construct the 90% confidence interval for the population mean. What is the lower limit of this interval?

NOTE: WRITE YOUR ANSWER USING 4 DECIMAL DIGITS.DO NOT ROUND UP OR DOWN.

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