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At a large department store, average number of years of service was 13.5 with a standard deviation of 6.2. If employee picked at random what is the probabilty that the employee worked there between 15 and 25 years.
Statistics and Probability, Statistics
The P-value for a two-sided test of the null hypothesis H0: μ = 50 is 0.035. Does the 95% confidence interval include the value 50? Why? Does the 99% confidence interval include the value 50? Why?
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 ...
Consider the probability distribution shown below. x 0 1 2 P(x) 0.65 0.30 0.05 Compute the expected value of the distribution. Compute the standard deviation of the distribution. (Round your answer to four decimal places ...
Suppose a retailer claims that the average wait time for a customer on its support line is 179 seconds. A random sample of 57 customers had an average wait time of 169 seconds. Assume the population standard deviation fo ...
4M Industries has 30 million shares outstanding trading at $20 per share. 4M also has $150 million in outstanding debt. Suppose firm's equity cost of capital is 12%, its debt cost of capital is 5%, and the corporate tax ...
Question: 387 women receiving free bone mineral density screenings were questioned. The questions focused on past smoking history. Sujbects undergoing hormone replacement therapy (HRT), and subjects not undergoing HRT, w ...
A logging contractor has three feller bunchers. On any given day, each machine has a 90% chance of working. The contractor is considering buying a fourth feller buncher to offset the possibility of none of the machines o ...
Before-tax cost of debt and after-tax cost of debt David Abbot is buying a new house, and he is taking out a 30-year mortgage. David will borrow $200,000 from a bank, and to repay the loan he will make 360 monthly paymen ...
Determine the margin of error for an 80?% confidence interval to estimate the population mean when s? = 36 for the sample sizes below. ?a)n=12 ?b)n=26 ?c)n=54 ?a) The margin of error for an 80?% confidence interval when ...
The number of cell phones per 100 residents in countries in Europe is given in table 9.3.9 for the year 2010. The number of cell phones per 100 residents in countries of the Americas is given in table 9.3.10 also for the ...
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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
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As