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Suppose we choose independently two numbers at random from the interval [0, 1] with uniform probability density. What is the density of their sum?Let X and Y be random variables describing our choices and Z = X + Y
How did they find Z RANGE [0,1] ?
Research paper about 'The effect of social media on consumers' purchasing decision in Saudi Arabia. Effect of social media on consumers' purchasing decision in Saudi Arabia.
Independent-Samples T-Test Computations, You obtain the data shown below for 30 girls with anorexia who were treated with psychodynamic therapy. These values can be interpreted as described in Week 6: Assignment 2.
A sample of 100 yields x ¯ = 24. The population standard deviation is 12. If a = .05, find the acceptance/rejection region H_0 and determine if you accept or reject the hypothesis H_0 (Draw graph!).
1. eithernbsp find a newspaper tv radio or web article that reports some scientific study or statistical analysis of
Last year, at Northern Manufacturing Company, 200 people had colds during the year. One hundred fifty-five people who did no exercising had colds, and the remainder of the people with colds were involved in a weekly exercise program. Half of th..
A study shows that scores on an aptitude test are normally distributed with a mean of 70 and a standard deviation of 12
A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years. A random sample of 600 young adults not enrolled in college was selected and 150 of them had at least one motor ve..
Three machines continuously process an unending number of jobs. The time it takes to process a job on machine A is a Uniform [0,4] random variable, the time it takes to process a job on machine B is Uniform [1,3] random variable, and the time it take..
The Mann-Whitney test, or none of these tests?
Determine and interpret the sensitivity of mammography.
Acme Manufacturing Company requires all of its 5000 employees to take a drug test. Suppose 2% of the employees actually use drugs (although the company does not know this number). The drug test is 95% accurate.
Test a manufacturer's claim that the average life of its product is 100 hours (H0: µ = 100). There is evidence that the true average life of the product is not as advertised.
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