An automatic filling machine is used to fill bottles with liquid detergent. A random sample of 20 bottles results in a sample variance of fill volume of s² = 0.0153. Assume that the fill volume is approximately normal. What is the 95% upper confidence bound? A. None of the mentioned B. 0.0243 s 0² ≤ 0,435 C. 0.243 ≤ 0² ≤ 0.435 D. 0² ≥ 0.0287

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