Concrete blocks are manufactured for construction. Assume the weights of the manufactured concrete blocks are normally distributed with a mean value of μ= 11.0 kg and a standard deviation of σ = 0.3 kg. a. As an engineer, what rangeof weights do you expect to find in 99.3% of the population? b. In a batch of 200 blocks, how many blocks do you expect to weigh less than 10.49 kg? c. Draw a normal probability distribution labeling the mean and the horizontal axis. Shade in the percent less than 10.49 kg
Concrete blocks are manufactured for construction. Assume the weights of the manufactured concrete blocks are normally distributed with a mean value of μ= 11.0 kg and a standard deviation of σ = 0.3 kg. a. As an engineer, what rangeof weights do you expect to find in 99.3% of the population? b. In a batch of 200 blocks, how many blocks do you expect to weigh less than 10.49 kg? c. Draw a normal probability distribution labeling the mean and the horizontal axis. Shade in the percent less than 10.49 kg
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Concrete blocks are manufactured for construction. Assume the weights of the manufactured concrete blocks are normally distributed with a mean value of μ= 11.0 kg and a standard deviation of σ = 0.3 kg.
a. As an engineer, what rangeof weights do you expect to find in 99.3% of the population?
b. In a batch of 200 blocks, how many blocks do you expect to weigh less than 10.49 kg?
c. Draw a normal probability distribution labeling the mean and the horizontal axis. Shade in the percent less than 10.49 kg.
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