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Which approach is most preferred and why? Optimistic, conservative, or minimax regret. Also, is establishing the most appropriate approach before analysising the problem important for the decision maker? Explain.
Die with 4 sides {1, 2, 3, 4} is tossed 2 times. Let X equal maximum of two observations and let Y equal minimum. Determine joint pmf of X and Y, and correlation coefficient. Are X and Y independent?
Formulate a linear programming model for this problem (using QM on Windows and/or Excel on Windows)
A company has developed the new battery, but the average lifetime is unknown. In order to estimate the average, a sample of 150 batteries is tested and an average lifetime of this sample is found to be 250 hours.
Develop a multiple regression model with categorical variables that incorporate seasonality for forecasting sales using the last three years of data in the Excel file New Car Sales.
You are interested in investing, and are considering a portfolio comprised of the following two stocks. Their estimated returns under varying market conditions are provided:
Critically the difference between Paramaeter and Statistics and Critically discuss the concept of operationalize? What are focus groups
In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken.
Compare the differences of Simple random sampling & Cluster sampling using specific examples, and show the pros and cons of each method.
Assume X is an exponential random variable with parameter lambda. Find the method of moments estimator for lambda.
A certain random experiment can result in one of four different possible outcomes, which we'll call A, B, C and D.
Let be the average of the pay you receive for the first and second week. Find the sampling distribution
A sample of 19 albino Hungarian banded aardvarks was examined for nose length. Since this is a small sample, how various degrees of freedom will be used to find the t-score.
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