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Question: Web-based exercise. Go to the Congressional Budget Office Web site, www.cbo.gov. What is the current prediction for the federal budget in five years' time? Is a surplus or a deficit predicted?
a politician claims that she will receive 63 of the vote in an upcoming election. the results of a properly designed
Calculate harmonic mean for the following data. Size of items 50-60 60-70 70-80 80-90 90-100 No of items 12 15 22 18 20
A. what is the probability a randomly chosen business customer flying is on a jumbo jet? B. what is the probability a randomly chosen non-business customer is on an ordinary jet?
The number of runs scored per game by a particular major league baseball team isa discrete random variable with mean 3.9 runs and standard deviation 1.3 runs. What is the probability that the team averages more than 4 runs per game
a research team plans to test the null hypothesis that ? .45 sigma.5. the test is right sided. a sample size of n1550
Many law enforcement agencies use voice-stress analysis to help determine whether persons under interrogation are lying. If the sound frequency of a person's voice changes when asked a question
messages arrive to a computer server according to a poisson distribution with a mean rate of 10 per hour. round your
A small manufacturing firm has 250 employees. Fifty have been employed for less than 5 years and 125 have been with the company for over 10 years. Suppose that one employee is selected at random from a list of the employees. For the following even..
a restaurant owner claims the percentage of his customer distribution is monday 10 tuesday 12 wednesday 10 thursday 15
Pedestrians can press at traffic intersections. It was found that 77% of those buttons do not work. Is the figure of 77% a parameter or a statistic?
The scores on a standardized mathematics test for 8th-grade children in New York State form a normal distribution with a mean of m = 70 and a standard deviation of s = 10. What proportion of the students in the state have scores less than X = 75?
A student has to have an accounting course and an economics course the next term. Assuming there are no schedule conflicts, describe the possible outcomes for selecting one section of the accounting course and one of the economics course if there..
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