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 entrance exam at a university is normally distributed with a mean of 520 and a standard deviation of 75. If only the top 10% of hte students are accepted, approximately, what is the lowest score for admittance into the university?
The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 241 customers on the number of hours cars are parked and the amount they are charged.
Assume that you are expecting a medium effect size, ? = 0.05, and a minimum power of 0.80. Your experiment utilizes three (3) groups. What is the required sample size (a priori)? How many data points should exist in each group?
Two points along a straight stick of length 39 cm are randomly selected. The stick is then broken at those two points. Find the probability that all of the resulting pieces have length at least 7 cm.
Find the indicated quantities given that X is a normal random variable with a mean of 30 and a standard deviation of 1.5. (Round your answers to 4 decimal places.)
The length of time (in seconds) that a user views a page on a Web site before moving to another page is a lognormal random variable with parameters ? = 0.5 and ?2 = 1.
The following probability model shows the distribution of doctoral degrees from U.S. universities in 2009 by area of study:
For Binomial distribution with n = 10 and probability of success p = 0.4 find probability of less than 3 successes (x < 3) (3 is not included).
Futhermore, Ken and Pacific Woods use the same supplier of plywood, and Ken was able to find out that Pacific Woods orders in qualities of 4,000 loads at a time. Ken also knows that 4,000 loads is the EOQ for Pacific Woods. What is the annual dema
Based on these data, the company can conclude that there is a statistical difference between men and women with regard to mean spending at the hardware store with men tending to spend more on average than women.
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