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Question: Four persons are to be selected from a group of 12 people, 7 of whom are women.
a. What is the probability that the first and third selected are women?
b. What is the probability that three of those selected are women?
c. What is the (conditional) probability that the first and third selected are women, given that three of those selected are women?
If 187of the random selected sample of 260 intend to vote can the aide's estimate be rejected at 0.05 level of significance? Perform a one tailed test.
The annual rainfall in Chennai is normally distributed with mean 129 em and standard deviation 32 em.
Problem based on combinatory - how many different license plates are possible?
Assume the underlying weight distribution is normal and that σ = 78.- Find a 99% confidence interval for the true mean weight of male polar bears in the Chukchi Sea.
A snack food company that supplies stores in a metropolitan area with "healthy" snack products was interested in improving the shelf life of its tortilla chip product. Determine the upper-tail critical value from the F distribution
suppose a box contains 4 balls labeled 1234. three balls are randomly selected from the box with replacement. let x the
Ten pairs of points yielded a correlation coefficient of 0.790. If α = 0.05, which of the following statements is correct if H0 = ρ0?
Name two or three competitors that compete most directly for the same resources and customers that you need to perform well as an organization (or other government agencies or non-profits that compete for similar donors or clients)? Pick one ques..
You are trying to determine the statistical significance of an equation. Given the following information, test the slope of the equation at the 95% level of confidence.
You are to take a multiple-choice exam consisting of 100 questions with five possible responses to each. Suppose that you have not studied and so must guess (select one of the five answers in a completely random fashion) on each question. Let r.v...
What type of primary source is this? What kind of information does this type of source generally contain?
Want a sample size of about 60 (30 controls and 30 cases). At 5% significance and 80% power.How do i determine the standard deviation and mean difference.And how do i arrive at the 60? my study design is case-control.
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