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Simulate 78 000 exponential random numbers having rate 4.7.
(a) Find the proportion of these numbers which are less than 2. Compare with the probability that an exponential random variable with rate 4.7 will be less than 2.
(b) Compute the average of these numbers. Compare with the expected value.
(c) Calculate the variance of this sample, and compare it with the theoretical value.
Describe the future ethical dilemmas in combating domestic terrorism After reviewing the assignments, Module Notes, and videos in the Learning & Assessment Activities page, you will have a better understanding of the many issues concerning the many..
Explain the difference between a left tail, two-tailed, and right tailed text. When would we choose a two tailed test? How can we tell the direction by looking at a pair of hypothesis?
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Write the null and alternative hypotheses
The average annual return on a certain stock is 8.3%, and the variance of the returns on the stock is 2.3.- Another stock has an average return of 8.4% per year and a variance of 6.4. Which stock is riskier? Why?
The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2.8 lb. Find the mean weight of Mr. Smith's ripe watermelon is only 6% weigh more than 15lb.
question a researcher in the west coast of the u.s. wants to estimate the amount of a newly discovered antibody in
If 118 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be less than 3412 grams?
suppose a population proportion is .40 and 80 of the time when you draw a random sample from this population you get a
Write a few sentences comparing the distribution of percentage population increases for the different governorates.
The average highway travel time from Waterloo to Toronto on accident free days (i.e., only regular volume of traffic) is around 90 minutes with a standard deviation of 10 minutes. The occurrence of an accident, however, results in an average delay..
About what percent of x values from a normal distribution lie within one standard deviation (left and right) of the mean of that distribution?
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