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A senator wishes to estimate the proportion of the united states voters who favor abolishing the electoral college. how large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%?
let x be a discrete random variable with possible values x ?1012 and probability function fx kx3 0.15 for x ?1012.a
1.simulate 100 random normal variables with mean 1.5 and standard deviation 2. create a histogram which shows the data
the population mean for verbal iq scores is 100 with a standard deviation of 15. suppose a researcher takes 50 random
consider two independent random variables xsub1 and xsub2 having same cauchy distributionfx1pi1x2 from negative
Let S be a subspace in Rn and {x1, x2, ..., xn} be a set of vectors whose span is S. The only vector d such that the cross product of d and xi is 0 for all i = 1, 2, ..., n is the zero vector.
State the hypotheses that can be used to determine whether the population proportions of delayed departures differ at these two airports and what is the point estimate of the proportion of flights that have delayed departures atChicago O'Hare?
What types of sources of capital can be employed in a transaction? Pick a single source of capital and describe why/under what circumstance you would use this type source.
Logistic regression is often applied to large financial databases. For example, credit scoring is a method of modeling the influence of predictors on the probability that a consumer is credit worthy. The data archive found under the index at www.s..
a gymnast m 70 kg is stationary in the inverted iron cross position. his arms are at 20 degrees from horizontal with
two airlines are randomly sampled to compare the porportion of on-time flights. out of 300 flights 73 of the flights at
the mean television viewing for americans is 15 hour per week monday november 2003. suppose a sample of 80 americans is
The null hypothesis is that there was no change in average liquor consumption. State this formally in terms of µ.
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