The weights of adobe bricks used for construction are normally distributed with a mean of 3 pounds

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The weights of adobe bricks used for construction are normally distributed with a mean of 3 pounds and a standard deviation of 0 25 pound Assume that the weights of the bricks are independent and that a random sample of 20 bricks is selected.

(a) What is the probability that all the bricks in the sample exceed 2.75 pounds?

(b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?

Related Book For answer-question

Elementary Statistics

ISBN: 978-0321691231

8th edition

Authors: Neil A. Weiss

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Posted Date: Aug 02, 2019 10:26 AM

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The weights of adobe bricks used for construction are normally distributed with a mean of 3 pounds

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a Denote the adobe bricks weight in pounds as X the mean of the normal distribution as 3 and the sta... View the full answer

Elementary Statistics

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