The article “Monte Carlo Simulation—Tool for Better Understanding of LRFD” (J. of Structural Engr., 1993: 1586–1599) suggests that yield strength (ksi) for A36 grade steel is normally distributed with mean = 43 and standard deviation = 4.5. (a) What is the probability that yield strength is greater than 58? (b) What yield strength value separates the strongest 75% from the others?

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A: x1 = 225x2 = 219 s1 = 20.25s2 = 21.7 n1 = 36n2 = 31

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Q: The result of anationwide aptitude test in Mathematics are normally distributed with μ=84 and sd=16.…

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A: mean of H.S graduate = ∑x1n1 = 18.99 mean of College graduate = ∑x2n2 = 21.0 standard deviation of…

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A: Given, n=17 s=0.09 α=1-0.95=0.05 degrees of freedom: df=n-1=17-1=16 As per chi-square distribution…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.