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Ground motion of earthquakes. In the Journal of Earthquake Engineering (November 2004), a team of civil and environmental engineers studied the ground motion characteristics of 15 earthquakes that occurred around the world between 1940 and 1995. Three (of many) variables measured on each earthquake were the type of ground motion (short, long, or forward directive), earthquake magnitude (Richter scale), and peak ground acceleration (feet per second). One of the goals of the study was to estimate the inelastic spectra of any ground motion cycle.
(a) Identify the experimental units for this study.
(b) Identify the variables measured as quantitative or qualitative.
Listed below are the highway fuel consumption amounts (in mi/gal) from cars in three different categories. Use a 0.05 signifiacance level to test the claim that the different car categories have the same median highway fuel consumption.
1. Explain why Bayes' theorem is necessary for handling additional information in a decision problem. 2. Explain the meaning of the term predictive probability.
Assume that a simple random sample is selected from a normally distributed population, use eith the P-value method or the tradiitonal method of testing hypotheses.
suppose that the distribution of net typing rate in words per minute wpm for experienced typists can be approximated by
suppose a random sample of 100 u.s. companies taken in 2005 showed that 21 offered high-deductible health insurance
A farmer has 40m of fencing with which to enclose a rectangular pen.Given that the pen is x m wide - show that it's area is (20x - x^2)m^2 and deduce that the maximum area that he can enclose (Answer given 100m^2).
Determine whether the following are demonstrative definitions, enumerative definitions, definitions by subclass, synonymous definitions,or etymological definitions.- "Professional person" means a person such as a doctor, a lawyer, a professor, or a..
A manufacturing company has three factories: X, Y, and Z. The daily output of each is shown here. If one item is selected at random, find these probabilities. It is a TV
Imagine that you have a portfolio of stocks. You want to compare the performance of your stocks to the market as a whole. You learn that the population mean,μ, of stock returns is 7%, and that the population standard deviation, σ, is 2%.
1. What important assumption about the relation between blocks and treat- ments is necessary for carrying out a block design ANOVA?
find the mean variance and standard deviation of the binomial distribution with the given values of n and p.n90
The following correlation matrix is given by Allison and Ciechetti (1976) in a study of sleep in mammals:
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