Note: - You are attempting question 2 out of 12 The diameter of a ring is known to have a normal distribution with standard deviation of 0.05 inch. A random sample of 20 rings have an average diameter of 2.1015 inch. What is the 95% two-sided confidence interval for the population mean diameter of rings. a) b) c) d) (1.0781, 2.1249) (2.0781, 2.1249) (-2.0781, -2.1249) Cannot determine with the given information. Answer

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A: Dear Student, As per the guidelines, I can solve only One question. Kindly repost others. Thanks!

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