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Suppose that the moment generating function of a randon variable X is given by
MX(t)=(2/(2-t))3
What is the value of the probability density function at x=1, that is fX(1)?
The engineers hoped to base their decision on the reactions of 50 drivers, but time and budget constraints may force them to cut back to 20. How would this affect the power of the test? Explain.
The shirt was a mesh polo shirt. Given this information, what is ths probability that the mesh polo shirt came from box 1?
the average cost per square foot for the office rental space in the central business district of petaling jaya is
The most important material reclaimed from beverage bottles is PET plastic. A serious impurity is aluminum, which later can clog the filters in extruders when the recycled material is used.
What is the probability that none of the next eight customers who order beer will order light beer? What is the probability that one customer will? What is the probability that two customers will?
The following data shows the service ratings for eight ramdomly selected small ships, eight randomly selected large ships. All ships are rated on a 100-point scale, with higher valuse indicated better service (traveler Feb 2003)
The number of degrees of freedom associated with the t test, when the data are gathered from a matched pairs experiment with 13 pairs, is:
The proportion of 25-29 year olds who are smokers is 0.032
The student body of a large university comprises 60% female students. Elucidate what is the probability that the students in the sample exactly two are female?
If 15% of the suitcases are overweight, find the maximum weight allowed by the airline. Assume the variable is normally distributed.
The germination success rate for begonia seeds is 60%. In a package of 200 seeds,
What is the approximate probability that the mean score X of these students is 23 or higher? D) Which of your two normal probability calculations in (a) and (c) is more accurate? Why?
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