Density function for a series of processes
The density function for a series of processes is fX (x) = 3/2x^2 for ?1 < x < 1. Choose 10 numbers independently from this distribution and find P(at least one is more than .5)
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The width of a confidence interval is defined to be the upper bound of the confidence interval minus the lower bound of the confidence interval. For example, if a confidence interval is (-2.34,9.87), then the width of this confidence interval is 9
A two-variable data set has a correlation coefficient of 0.84. What is the coefficient of determination?
The lifetime of one of DotCom's electronic equipment has a mean of 400 hours and standard deviation of 400 hours. They have been assuming lifetime is normally distributed. What is the probability that equipment operates for more than 500 hours bef
Statistics - Degrees of Freedom independent two sample test? A independent two-sample test with n1=34 and n2=42 would have how many degrees of freedom for the critical value?
Suppose that the average number of airline crashes in a country is 1.9 per month.
Give an example of how you may use a correlation or simple regression to examine the relationship between two variables in your area of interest. State the null and alternative hypothesis and clearly define your variables.
A recent report by the American Medical Association stated the average annual salary of psychiatrists is $189,121 with a population standard deviation of $26,975.
A new muscle relaxant is available. Researchers from the firm developing the relaxant have done studies that indicate that the time lapse between administration of the drug and beginning effects of the drug is normally distributed, with mean (mhu)
If you wanted to calculate the "average" percentage of people with advanced degrees across all states, would you report a mean, median or mode?
How do I find fisher information matrix of n iid random variables (X1,... Xn) of a gamma distribution with parameter alpha and beta?
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