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Suppose there are 400 students in your school class. What class rank is the 20th percentile?
Statistics and Probability, Statistics
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Can a business have too much money in Cash, meaning cash on hand as well as in checking and savings accounts? What if a business had 100 million dollars in these cash accounts but only needed half of that for what Keynes ...
Transaction costs In late December you decide, for tax purposes, to sell a losing position that you hold in Twitter, which is listed on the NYSE, so that you can capture the loss and use it to offset some capital gains, ...
One sample has n = 8 and SS = 21 and a second sample has n = 8 and SS = 35. What is the pooled variance for the two samples?
What is the sample size for studies with MOE of +/-3.5% and +/-2.8%?, with a confidence level of 95%, sample statistics of .50? Please show work.
When Alice spends the day with the babysitter, there is a 0.5 chance she turns on the TV and watches a show. Her little sister Betty cannot turn on the TV by herself. But once the TV is on, Betty watches with probability ...
A study showed that in? 1990, 47?% of all those involved in a fatal car crash wore seat belts. Of those in a fatal crash who wore seat? belts,44?% were injured and 27?% were killed. For those not wearing seat? belts, the ...
Help me solve the following 1) When there is a significant difference in the population, but the research fails to find one ...this is what kind of error? 2) Assume that when victims are asked how well their needs were m ...
A coin is biased so that the probability of obtaining heads is ¾, What is the probability of obtaining at least three heads in four tosses of the coin?
A corporate bond is currently selling for $840. It has 5 years till maturity, 6% coupon, and YTM=10%. What is the par value?
For an environmental group, it is known that 75% of their door-to-door solicitations result in a donation of some kind. Find the probability that... (Hint: first determine what is a 'success' and what is a 'failure' base ...
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