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Let's say 15% percent of Americans had a stroke last year. Now, If I choose 17 people at random, find the probability that 6 of them had a stroke last year. Also, find the probability that at least 5 had a stroke last year.
Statistics and Probability, Statistics
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Use the standard normal distribution or the? t-distribution to construct a 90?% confidence interval for the population mean. Justify your decision. If neither distribution can be? used. In a recent? season, the populatio ...
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If we are interested in job satisfaction. Name a variable that correlates with job satisfaction but we do not have causation. Name a variable that you believe may have a casual relationship with job satisfaction. Name a ...
A researcher working at a particular company wants to know if workers' health would improve if they were given extra days 'off. In this company, all workers undergo a standard physical exam twice a year and after each ex ...
A nutritional scientist wishes to study the effect of storage time on the amount of vitamin C (milligrams) contained in 50 gram freeze dried fruit packs when stored for one, one and a half and 2 years. Five fruit packs w ...
Hardboard is graded with the following frequencies: Grade A: 1/5 Grade B: 3/4 Cull: 1/20 If six pieces come off of a hot press, find the probability that two are Grade A, three are Grade B, and one is a Cull.
The December CBOT Treasury bond futures contract is quoted at 92-19. If annual interest rates go up by 1.50 percentage points, what is the gain or loss on the futures contract? (Assume a $1,000 par value, and round to th ...
1. What is the YTM for a 14-year semi-annual bond that pays $35 every six months and has a purchase price of $980.000? Face value is $1,000. 2. A person wants to put aside $500 at the beginning of each month for 10 years ...
XYZ company to have earnings of $3.20 per share during the fiscal year ending in one year on September 21, 2019. The firm currently plans to retain 90 percent of earnings at the end of each of the next three fiscal years ...
(a) In how many ways can 5 men and women stand in a queue in such a way that no two women stand together and no two men stand together? (b) A librarian wants to put 30 different books on 3 shelves, 10 books on each shelf ...
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