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Write a function to simulate data as described on page 17 in ESL for one of the classes. Your function should take as inputs a 102 matrix of centroids, the sample size, and the noise variance. Generate a training sample of size 100 for each class, as well as a test sample of 5,000 per class. (Best to generate the centroids matrices per class once and store them). Try and write elegant code, that makes use of the matrix/vector facilities in R.
When there are multiple observations per subject, what issues are there with doing a MNL and an ordered logit model, answer in detail and provide example.
A much larger sample would be needed to estimate the proportion of the U.S. Army's 2.4 million active duty and reserve personnel who approved the repeal than would be needed to estimate the proportion of the Marine Corp's 200,000 personnel who fel..
Determine the point estimate? Give the symbol and value.
Pizza House offers 4 different salads, 5 different kinds of pizza, and 4 different desserts. How many different three course meals can be ordered?
A recent national survey found that high school students watched an average (mean) of 7.5 DVDs per month with a population standard deviation of .60.
State the decision rule for .05 significance level. (Round your answer to 3 decimal places.)
What is the 95% confidence interval estimate for the difference between the mean reflectivity reading for Paint A and Paint B? Please complete the blank: "we can be 95% confident that the true difference between the actual means is?
The president of Crooked Arrow National Bank wants to determine whether more than 60% of the banks loans are made to persons residing in Crooked Arrow.
The variance of the return per share is 4 for stock 1 and 100 for stock 2. The covariance of the return between the two stocks is 5 per share. Use the total variance of the investment as investment risk.
Suppose the budget has the support of 52% of the voters. What is the probability that the newspaper's sample will lead it to predict defeat?
Research question: Are the mean crash damages the same for these three vehicles?
If we want to increase our confidence level from 95% to 99%, what happens to our confidence interval?
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