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Question: In a community, there are N male and M female residents, N , M > 1000. Suppose that in a study, people are chosen at random and are asked questions concerning their opinion with regard to a specific issue. Let Xn = 1 if the nth person chosen is female, and Xn = 0 otherwise. Is {Xn : n = 1, 2,...} a Markov chain? Why or why not? 2. For a Markov chain {Xn : n = 0, 1,...} with state space {0, 1, 2,...} and transition probability matrix P = (pij ), let p be the probability mass function of X0; that is, p(i) = P (X0 = i), i = 0, 1, 2, . . . . Find the probability mass function of Xn.
a draw thenbspscatter plotnbspfor the variables.b compute thenbspcorrelation coefficient. usenbspthree
You are the designer for your company's web site. You have data to indicate that the mean download time for the homepage is 5.8 seconds and that the standard deviation of download time is 2.1 seconds.
use the one-proportion z-test to perform an appropriate hypothesis test. be sure to check the conditions for using that
I hypothesized that girls in my class have the same blood pressure levels as boys. The probability value for my null hypothesis was 0.15. So I conclude that the blood pressures of the girls were higher than boys'. Which kind of mistake did I make?
Another quote in the article is In response to the influenza vaccine, the meditators displayed a significantly greater rise in antibody titers.
The sports expert reported that 202 of 454 athletes in the random sample were women. Is this strong evidence that the participation rate may have increased?
Describe the nonequivalent control group pretest-posttest design. Why is this a quasi-experimental design rather than a true experiment?
How do you compute the mean and SD of a discrete probability distribution? How do you compute the mean and standard deviation of a binomial probability distribution?
if a population has a standard deviation ? of 25 units what is the standard error of the mean if samples of size 100
penner and watts 1991 investigated whether the time to drill holes in rock differs using dry or wet drilling. in dry
Construct a 90% confidence interval for the proportion of all kernels that would not pop.
a simple random sample of 47 adults is obtained and each persons red blood cell count in cells per microliter is
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