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Let X be a continuous distribution with probability density function: f(x))=2 / (x+3)^2 if x>= -2 and f(x)=0 otherwise
Let Y=X^2. Determine P(Y<=4)
What probability distribution does n1 alone have? Specify the values of the sample size index and parameter for that distribution.
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 925 hours. A random sample of 39 light bulbs has a mean life of 905 hours with a standard deviation o 55 hours.
Determine the standard error of estimate. Suppose a large sample is selected (instead of just five). About 68 percent of the predictions would be between what two values?
a sample of n 4 scores has a mean of m 12. a second sample of n 6 scores has a mean of m 8. if the two samples are
Determine the shortest time spent waiting for a heart that world still place a patient in the top 10% of waiting times? In days?"
suppose that you are in a class of 33 students and it is assumed that approximately 15 of the population is
please help and provide the worked out problems and answers. if the script and results of program r is know for this
question consider the following two designs for a 28-3 fractional factorial design.design inbsp design
suppose that the reaction time sec to a certain stimulus is a continuous random variable with a density function given
assume you are building a system aircraft etc. for a customer but using the best technology available. you cannot
when taking an exam some students quickly answer all the questions they know how to do. if they go back and revise
What assumption tests should be used? A fifth grade science teacher want to know if there is a relationship between final exam scores and overall course points after adjusting for a quiz score.
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