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Please provide the mathematical equations and answer to the following:
In a box model, the maximum distance to transport particle across a city is calculated as follows: Approximate length of one side is 30 miles, width is 28 miles and the mixing height is 2 miles. To the nearest hour what will be the average time it will take a particle to travel from one side to the other (to the nearest hour)?
1. Let X1,..., Xn be a random sample from an exponential distribution with parameter θ. A sample of 350 observations from this population has a mean equal to 3.75. Construct a 90% con?dence interval for θ.
Construct a 95% confidence interval for the proportion of all those who experience some type of discomfort.
In a test of the effectiveness of garlic for lowering cholesterol,48subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes in their levels of LDL cholesterol (in m..
1. Should Rick Lester "turn in his keys"? 2. How should Mr. Brown handle this situation? What should he say to Rick? 3. How can firms reduce high turnover amo
A stick is broken at random into two pieces. You bet on the ratio of the length of the longer piece to the length of the smaller piece. You receive
Suppose the number of used cars sold, and the number of new cars sold are independent. Find the mean and standard deviation of the dealer's profit in a month.
Is the Euro fair? Soon after the Euro was introduced as currency in Europe, it was widely reported that someone had spun a Euro coin 250 times and gotten heads 140 times. We wish to test a hypothesis about the fairness of spinning the coin.
Compute the Facebook's expected daily return and the standard deviation using its realized return from May 18, 2014 to Dec 31,2017.
We want to determine if the proportion of people in the population who believes this is less than 0.75. What is the p-value?
a. Fit a two-region regression tree. What is the first split point based on age? What is SSE for this two-region tree? b. Find the second split point given the two region tree in part (a). What is SSE for the resulting three-region tree?
Marriage and status "Would you marry a person from a lower social class than your own?" Researchers asked this question of a random sample of 385 black.
1. Give an example of a number that cannot be a correlation coefficient (Pearson's r) and is a negative number. 2. Interpret the following statement. A researcher collected data on the correlation between grades in a course and the number of abs..
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