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The interval(3,15) is the 95% confidence interval for a population parameter from a random sample of size 25, where the random sample isdrawn from a

The interval(3,15) is the 95% confidence interval for a population parameter from a random sample of size 25, where the random sample isdrawn from a normal distribution withunknown variance2 (sigma squared). Find the sample standard deviation to three decimal places.

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