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What is coefficient of dispersion. & why coefficient word is used here.
Statistics and Probability, Statistics
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Question: In one law school class the entering students averaged 700 on the LSAT test with a standard de-viation of 40. Assuming the distribution of test scores was normal, what fraction of the class scored above 750? Th ...
What is the 99% confidence interval for a sample of 52 seat belts that have a mean length of 85.6 inches long and a standard deviation of 3.8 inches?
Doctoral assistant ships of Ph.D students 50% have paid assistant ships. a random sample of n=200 students is chosen.. based on this sample and using the properties of the binomial distribution, what is the approximate s ...
Flyers, Inc., just paid an EPS of $4.9 this year. Flyers is expected to maintain a retained earnings ratio of 50% and ROE of 5.5% for the next five years. After the fifth year, ROE is expected to decrease to 3.3%. Applyi ...
If you know your raw score is 35, your z score is -3, and your t score is 20. The mean is 50 and the standard deviation is 5. How would you use this information to solve for a percentile rank?
What are the minimum, first quartile, median, third quartile, maximum, interquartile range, and range of the data set below? Make a box-and- whisker plot. 25, 25, 30, 35, 45, 45, 50, 55, 60, 60
Question: I don't understand how you would test if the data shows that there is a difference between some supplies if the testing level is at 1%? Can you show me the steps of how you would test if the data shows that the ...
Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)
In a population of Ph.D students 50% have paid assistant ships. A random sample of n=200 students are chosen. What is the expected number of students who have paid assistant ships in this sample?
Twelve different video games showing substance use were observed and the duration of times of game play? (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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