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1. A liquid is slowly cooled at constant volume. Its energy decreases. The fundamental equation says that the change in entropy of the liquid, dS = dE/T, is negative. Is this in violation of the second law of thermodynamics? Why or why not?
2. Your friend claims that in any closed cyclic process, the change in entropy for the cycle must be zero because the entropy is a state function and because the beginning and endpoints of the cycle are the same. Therefore, all cyclic processes must be reversible. What is wrong with your friend's analysis? Explain.
Find the variance and standard deviation for the two distributions above. Compare the variation of the data sets. Decide if one data set is more variable than the other.
1. the area between z 0 and z 0.8 under the standard normal curve is?round to four decimal places2. for the standard
During recent seasons, Major League Baseball has been criticized for the length of the games. A report indicated that the average game lasts 3 hours and 30 minutes.
Conduct a hypothesis test to determine if an increase of 1 unit in the x variable will result in the decrease of the average value of the y variable.
10 materials samples have been tested, with their Yield Strengths being recorded. This data is available on Blackboard, along with a script to load the data. Determine the sample mean and variance for the Yield Strengths using MATLAB.. Determine th..
Compute a Pearson's correlation coefficient for these data and determine whether the correlation is significant.
let x be a discrete random variable with possible values x -1012 and probability function fx kx3 0.15 for x -1012.a
Review Magnusson's web blog found in the Learning Resources to further your visualization and understanding of statistical power and significance testing. Review the American Statistical Association's press release and consider the misconceptions ..
State the four steps of hypothesis testing. What are two decisions that a researcher makes in hypothesis testing?
Test, using the ANOVA F-test at the 5% level of significance, whether the data provide sufficient evidence to conclude that there are differences.
Select a material, laminate stacking sequence, and thickness, to carry a uniformly distributed load p = 172 kP a. The plate is 15 cm wide and 2 m long, simply supported around the boundary.
(a) the transition probabilities of this Markov chain; (b) E[Xn|X0 = i]; (c) the stationary probabilities of this Markov chain.
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