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Among Towson students 70% own a car, 50% own a bike, and 40% own both
a. Draw a venn diagram to illustrate thisb. Find a probability that a randomly chosen student owns atleast one of the above vehiclesc. What is the probability that a randomly chosen student does not own a bike.
What is the sensitivity and specificity of the test? Suppose that 1 out of 500 infants are born with Down's syndrome.
The sales of Lexus automobiles in the Detroit area follow a Poisson distribution with a mean of 3 per day. What is the probability that for five consecutive days at least one Lexus is sold?
What is critical z-value which corresponds to confidence level of 88%.
What value will standard deviation σ x of sampling distribution approach? How do two x distributions for sample size n = 50 and n = 100 compare?
A social psychologist is studying college students attitudes toward drinking and driving. He is specifically interested in attitude change as a result of years in college and of viewing the consequences of drinking and driving accidents.
What score was earned by more students than any other score? Why? What was the highest score earned on the exam?
Humanities, 372; Natural Science, 415; Social Science, 511; Business Administration, 619; Philosophy, 196. Create a Pareto chart representing this information.
Evaluate 2-month moving average and Exponential smoothing by MAD.
Considering that the probability of event C is .44, of event D is .20, and the probability of their intersection is .088, determine whether C and D are dependent or independent events.
What are the key conceptual differences between these 3 methods? In other words, under what conditions do we choose each method for our analysis, and why?
The heights were measured for nine supermodels. They have a mean of 67.1 and a standard deviation of 2.3 in. Use the traditional method and a 0.01 significance level to test the claim that supermodels have heights with a mean that is greater than ..
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 96 pounds. A random sample of 50 newly manufactured cables has a mean breaking strength of 1950 pounds.
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