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1. If the normality assumption is violated, what effect might this have when computing confidence intervals as described in box 8.1
2. If the homoscedasticity assumption is violated, what effect might this have when computing confidence intervals as described in box 8.1?
A West Coast university has found that about 90% of its accepted applicants for enrollment in the freshman class will actually enroll. In 2007, 1360 applicants were accepted to the university. Within what limits would you expect to find the size o..
which of the following contain the least amount of information as to whether the distribution of a population contains
Provide an example of a binomial random variable as it applies to something in your personal or professional life. Specifically, provide a "real world" example of a random variable that would satisfy the characteristics of the binomial. Be specifi..
A certain queueing system has a Poisson input, with a mean arrival rate of 4 customers per hour. The service-time distribution is exponential, with a mean of 0.2 hour.
the liquid chlorine added to swimming pools to combat algae has a relatively short shelf life before it loses its
11) The time taken to assemble a car in a certain plant is a random variable having a normaldistribution of 20 hours and a standard deviation of 2 hours. What is the probability that a car canbe assembled at this plant in a period of time:a. le..
A wireless pressure sensor (buried in the ground) reports a discrete random variable X with range SX = {0, 1,..., 20} to signal the presence of an object. Given an observation X and a threshold x0, we conclude that an object is present (hypothesis..
What do you expect to find if your hypothesis is correct? If you obtain the expected results, what do you conclude about the effect of the artificial sweetener on headaches?
Describe two data sets (anything): one that is approximately normally distributed and another that is not normally distributed. Describe the data sets, and for the non-normally distributed data set describe its shape (Is it skewed? bimodal?)
The weighs of newborn elephants are normally distributed.
A standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that is between 170 and 220. help solve statistics.
Discuss how the wartime alliance between the Soviet Union and United States broke down in the post-war years leading up to the outbreak of war in Korea.
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