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The average annual return on a certain stock is 8.3%, and the variance of the returns on the stock is 2.3.
Another stock has an average return of 8.4% per year and a variance of 6.4. Which stock is riskier? Why?
One puzzling aspect of the "official" Six Sigma literature is that it states that a process operating at Six Sigma will produce 3.4 parts-per-million (PPM) defects. However, if a special normal distribution table is consulted (very few go out to Six ..
Since the topic for my final essay is "The Effects of Stress in Health," I would use my introduction paragraph to introduce my topic by using a strong argument that is mostly significant to my argument to grab the reader's attention
What is the most likely monetary outcome of the business venture?- Is the venture likely to be successful?- What is the long-term average earning of business ventures of this kind? Explain.
Explain the difference between single-stage and two-stage cluster sampling. What are the limitations of cluster sampling?
How can looking at expression of RNA contribute to understanding evolution?
The labor force participation rate is the percentage of the population that is employed, or unemployed. Those that are actively working are the ones that are employed, to be considered unemployed you would have to be actively looking for a job and ha..
The company is considering increasing fares by an appropriate amount to cover expected compensation to passengers who lose their luggage. By how much should the airline increase fares? Why? Explain, using the ideas of a random variable and its exp..
What role does the spleen play in the bodies recovering from mononucleosis? What is the purpose of granules in white blood cells and why are there size variations between granular and agranular WBC's?
Describe the role of statistics in business decision-making. Provide at least two business research questions, or problem situations, in which statistics was used or could be used.
What is the purpose of dating? What are your requirements in a friend? lover? mate? How often do you expect your mate t write you when you're first dating? After a year? once you are married
The time between telephone calls at a company switchboard has an exponential distribution with mean of 3 minutes. (a) Find the probability that the average of 45 of these times is less than 2.5 minutes.
Obtain a test statistic and p-value. Interpret the results. (c) Is normality assured? (d) Is the difference large enough to be important?
Determine if you would reject or fail to reject the null hypothesis in each of the following cases: (a) z=1.06 (b) z=2.06 (c) A z score beyond which 7% of the data fall in each tail.
Madison Metals recently reported $9,000 of sales, $6,000 of operating costs other than depreciation, and $1,500 of depreciation. The company had no amortization charges and no non-operating income.
The matrices A and B are symmetric and positive semidefinite of order n X n such that AB = BA. Show that AB is positive semidefinite.
Find/discover an example of statistics in the news to discuss the following statement that represents one of the objectives of statistics analysis: "Statistics helps us make decisions based on data analysis.
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Use Exercises 16.3.3, 16.3.4 and 16.5.1 to test the hypotheses H1 : b1 = b*1, H2 : b2 = b*2 against the corresponding alternatives A1 : b1 ¹ b*1, A2 : b2 ¹ b*2 at level of signi?cance a.
Past data reveals that the graduation rate was 72% for the medical school at a university. If 10 medical students are randomly selected for that school. Find the probability that only 4 of them will graduate.
a box contains three white and three black balls. a randomly selected ball is removed from the box. if the selected
according to a genetics theory a certain cross of guinea pigs will result in red black and white offspring in the ratio
Based on p=.60, probability that a randomly selected homeowners will say no to newspaper subscription.
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