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How to prove the natural parameter space of an exponential model is convex without using Holders inequality and other complex theories? Here is the original question. Let A be the natural parameter space for an Exponential model f(u; phi) = exp{ (phi-transpose) * u - k(phi)}*h(u). Give an elementary proof that A is convex. Note: Please prove without using Holders inequality and other complex theories. Please let me know a simple way to prove that the natural parameter space A is convex.
The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error for the two sampl..
A random sample of 20 patients in a weight loss clinical trial lost an average of 25 pounds over an 8 week period. The sample standard deviation is 10.
Suzie's Sweatshirts is a home-based company that makes upscale, hand painted sweatshirts for children. Forecasts of sales for the next year are Autumn: 125
Estimate with 90% confidence the difference in the level of satisfaction with service between the two branches.
Assumed to have 20 pounds of carry-on baggage, find the probability that his total is greater than 195 pounds. Round your answer to three decimal places.
National data show that, on average, college freshman spend 7.5 hours a week going to parties. President DeRosa doesn't believe that these figures apply at his school; he thinks freshman at his school party less.
If the payoff from outcome A is twice the payoff from outcome B, then the ratio of these utilities will be.
Their monitoring plan will take a random sample of 5 days sales per month and use the sample mean sales to identify shops that are under-performing. Establish the lower limit sales such that only 5% of the shops would have a sample sales mean belo..
A researcher hypothesizes that people who listen to classical music have higher concentration skills than those in the general population. On a standard concentration test, the overall mean is 15.5. The researcher gave this same test to a random samp..
The data is shown on the table. Is there a difference in mean SBP between treatments? Run the appropriate test at α= 0.05
A month of sales data are collected on sales of different types of computer products Run the t-tests to determine:
What is the difference between strong negative and strong positive correlation? What does zero correlation tell you? Can you share a relationship between two variables that is typically negative?
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