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Volcanoes. Almost every year, there is some incidence of volcanic activity on the island of Japan. In 2005 there were 5 volcanic episodes, defined as either eruptions or sizable seismic activity. Suppose the mean number of episodes is 2.4 per year. Let X be the number of episodes in the 2-year period 2008 2009.
a) What model might you use to model X?
b) What is the mean number of episodes in this period?
c) What is the probability that there will be no episodes in this period?
d) What is the probability that there are more than three episodes in this period?
What happens to the confidence interval and the power of the test at a particular point of interest. As one increases the sample size of a test, all else remaining the same.
The frequency distribution for population density (persons per square mile) for the 50 U.S. states is as follows:- Does this distribution appear to be symmetrical? If not, is it skewed positively or negatively?
The basic requirements needed to form a contract.
A freight-hauling firm estimates that it will need a new forklift in six years. The estimated cost of the vehicle is $40,000.
If you require an 11% nominal yield to maturity on this investment, what is the maximum price you should be willing to pay for the bond?
64% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan.
Suppose that mean body temperature for adults has a normal distribution with mean µ = 98.2 degrees Fahrenheit and standard deviation s = 0.8 degrees.
Find the solution y(x,K). Is it a continuous function of K? Can it be differentiated with respect to K?
Previous research has shown that μ.5 pecks if chickens are exposed to white string. Conduct a test (at α=.01) to determine if the true mean number of pecks at blue string is less than μ.5 pecks.
1. in a taste test between coke c and pepsi p a random sample of 15 students gave the following preferences c c p
How do I define the the population and select a simple random sample of size n from the population? A random sample of n=12 values taken from a normally distributed population resulted in the following sample value:
Calculate the actual probability model.- Compare the distribution of outcomes in your simulation to the probability model.
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