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1. The owner of a major steel bridge in Madrid has recently awarded a contract for rehabilitation of the bridge. List the factors that could affect the success of this project. These should include the factors related to the bridge, the treatment, the environment, the contractor, and the bridge owner.
2. Explain why the establishment of a database is critical in the maintenance management of civil engineering systems.
3. What are some of the common distresses that could occur on any three of the following civil systems: bridges, dams, buildings, water tanks, levees, sewer pipes, highway pavements, and windmills? For each distress, identify a possible treatment. Tabulate your answers.
Use this as the population mean and the population standard deviation is $.20. What is the probability that the mean price for a sample of 30 service station will be within $.03.
Construct the 90% and 99% confidence interval for population mean. Which interval is wider? If convenient, utilize technology to construct confidence intervals.
which of the sets in the diagram below are independent?why or why not?(be sure you get all pairs of sets)
Effectiveness White flies are devastating California crops. An area infested with white flies is to be sprayed with a chemical which is known to be 98% effective for each application.
suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. what is the
chi squarea. what happens to the degrees of freedom in a chi-square as the sample size gets larger? explain your
what type and level of data must you collect to conduct a t-test? why? what are examples of variables with which we
What percentage of these kettles will last between 90 and 110 months? The appliance giant offers a replacement guarantee on kettles which malfunction within a certain time of the purchase.
Suppose you take a sample of size 100 of test scores and find that the mean is 63. What is the z-score corresponding to this sample mean?
During the 2003 season, MLB took steps to speed up the play of baseball games in order to maintain fan interest; the following results come from a sample of 60 games played during the summer of 2002. And a sample of 50 games played during the summ..
A consumer is contemplating the purchase of a new compact disc player. A consumer magazine reports data on the major brands. Brand A has lifetime (TA) which is exponentially distributed with m=.02; and Brand B has lifetime
What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?
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