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Confidence interval for the mean weight

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A process producing bricks is known to give output whose weights are normally distributed with a standard deviation of 50 grams. A random sample of 16 bricks from today's output had a mean weight of 1850 grams. Find a 90% confidence interval for the mean weight of all bricks produced today. Based on your professional statistic knowledge, what happens to the width of the CI when s increases?

Reference no: EM131860340

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