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A bridge culvert is designed to pass a stream discharge with an annual exceedance probability of 0.02 without overtopping the roadway.
a) Compute the probability that the bridge will be overtopped at least once during the next ten years.
b) Computer the probability that the bridge will be overtopped exactly once during the next ten years.
c) Compute the probability that the bridge will be overtopped in two of the next 50 years.
A Harris poll of 1012 adults resulted in 870 who say that they always wear a seat belt in the front seat. Find the value of the test statistic z for proportion.
A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.
in a large american university in 1969 the male and female professors were sample independently yielding the following
Which ones are testable and which ones are not testable? Select one claim and develop the null and alternate hypotheses and suggest a possible method of testing the hypothesis and measuring your concept.
While some teenagers received no allowance, others reported receiving $200 per week. Based on this information, the mean allowance for U.S. teenagers is most likely.
Create the acceptance-rejection technique for creating the geometric random variable, X, with parameter p on range {0, 1, 2, ...}.
In this the anniversary of the sinking of the Titanic, it is interesting to look at the distribution of those who survived, and those who died. The table below describes the number of men, women and children who were passengers on the Titanic.
Distributed with a mean of 9.5 years and a standard deviation of 1.8 years. Find the replacement time that separates the top 18% from the bottom 82%.
Hypothesis testing of single mean - The Wall Street Journal reported that the 30-year mortgage rate is now less than 6%.
the computer anxiety rating scale cars measures an individuals level of computer anxiety on a scale from 20 no anxiety
A test is given to graduates of tw buisness schools A and B. The scores are given out of 100. Test whether the school differ in quality by using Mann- Whitney U- test with a 10% level of significance.
annbspadvocacy groupnbspis investigating whether gender has an effect on job category in largenbspinvestment firms.
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