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A list of ten employee salaries has a mean of $80,000, a median of $52,000 and a standard deviation of $24,000. The largest salary on the list is $100,000 and is accidentally changed to $1,000,000. What is the new standard deviation?
Statistics and Probability, Statistics
A jar of peanut butter contains 451 grams with a standard deviation of 10.6 grams. Assuming a normal distribution, find the probability that a jar contains less than 448 grams.
You have graduated from college but unfortunately have $33,000 in outstanding loans. The loans require monthly payments of $3,700, which covers interest and principal repayment (that is, the loan has the same basic featu ...
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 ...
For the past 110 ?years, a certain state suffered 28 direct hits from major? (category 3 to? 5) hurricanes. Assume that this was typical and the number of hits per year follows a Poisson distribution. Complete parts? (a) ...
Sharon recently invested in real estate with the intention of selling the property one year from today. She has modeled the returns on that investment based on three economic scenarios. She believes that if the economy s ...
Someone reasons that when a coin is tossed, there are three possible outcomes: it comes up heads or tails or it lands on it edge. With three outcomes on each toss, the fundamental counting rule suggests that there are ni ...
A random sample of 25 values is drawn from a mound-shaped and symmetric distribution. The sample mean is 12 and the sample standard deviation is 2. Use a level of significance of 0.05 to conduct a two-tailed test of the ...
Medical researchers studying the effects of a low carb diet versus a normal diet randomly assigned obese patients to one of the two diets. The patients were followed up with after several months and the amount of weight ...
1 Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create a scatter plot and find a regression equation between house value an ...
The Easy Clean Company just paid a dividend of $1.50 (D0=$1.50). The dividend is expected to grow at a constant rate of 8%. The required rate of return is 11.50%. What is the expected price of Easy Clean stock in Year 5 ...
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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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Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
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Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As