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A straight rod is formed by connecting three sections A, B, and C. each of which is manufactured on a different machine. The length of section A, in inches, has a normal distribution with mean 20 and variance 0.04. The length of section B has a normal distribution with mean 14 and variance 0.01. The length of section C has a normal distribution with mean 26 and variance 0.04. As indicated in Fig. 5.3, the three sections are joined so that there is an overlap of 2 inches at each connection. Suppose that the rod can be used in the construction of an airplane wing if its total length in inches is between 55.7 and 56.3. What is the probability that the rod can be used?
Performance in online courses. Florida State University information scientists assessed the impact of online courses on student performance.
Evaluate the data below using the Kruskal - Wallis Nonparametric Hypothesis Test. Explain why you chose this particular nonparametric test to analyze your data.
Conduct a study to examine the relationship between party affiliation and gender. You find the following:
Suppose you toss a coin and will win $1 if it comes up heads. If it comes up tails, you toss again. This time you receive $2 if it comes up healds.
A random sample of 100 items is selected from a population of size 350. What is the probability that the sample mean will exceed 200 if the population mean?
The overall maintenance budget over the life cycle is $C. Other constraints are that the total benefit must be at least a certain threshold, R units. What kind of knapsack problem is exemplified by this problem? Give reason for your answer.
in one particular investigation a sample of 48 shear strength observations gave a sample mean strength of 17.17 nmm2
an automated filling process used by a soft drink manufacturer fills bottles marked as containing 32 ounces. the amount
estimate the means of the populations from which samples were drawnavoid the assumption of homogeneity of
To model the relationship between y, a dependent variable, and x, an independent variable, a researcher has taken one measurement on y at each of three different x values. Drawing on his mathematical expertise, the researcher realizes that he can ..
Find the probability of failure of system for any 4 hours of operation?
The mean SAT verbal score is 478, with a standard deviation of 98. Use the Empirical Rule to determine what percent of the scores lie between 380 and 478. (Assume the data set has a bell-shaped distribution)
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