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?Treck Co. expects to pay £350,000 in one month for its imports from Northern Ireland. It also expects to receive £325,000 for its exports to Scotland in one month. Treck Co. estimates the standard deviation of monthly percentage changes of the pound to be 2% percent over the last 3 years. Assume that these percentage changes are normally distributed. Using the value-at-risk (VaR) method based on a 95 percent confidence level, what is the maximum one-month loss in dollars if the expected percentage change of the pound during next month is -2 percent? The current spot rate of the pound (before considering the maximum one-month loss) is $1.38.
Given the following hypotheses: the true mean equals 100 (the null) and the true mean does not equal 100 (the alternate), a random sample of six resulted in the following values:
Suppose that the scores of architects on a particular creativity test are normally distributed.What percentage of architects have Z scores. (a) above .10, (b) below .10
a. Specify the null and alternative hypotheses to test the diet center's claim. b. Calculate the value of the test statistic T.
Supposed that from a population of 50 banks accounts, we want take a random sample of four account in order to learn about the population, how many different random samples of four accounts are possible?
abc company just completed a business strategy for the next 5 years that is planned to result in increasing sales
a random sample of mens soccer shoes from an international catalog had the following weights in ounces10.8 9.8 8.8 9.6
a student wanted to construct a 95 confidence interval for the average age of students in her statistics class. she
Biology and Environmental Science Piers on public beaches are usually supported by widely spread piles or pillars and can extend a thousand feet into the ocean.
you are estimating the manufacturing hours for an airframe based on the airframe weight. the airframe you are
What do statisticians do, and where do they work? Also, can you explain Confidence and Risk in decision-making? Please provide examples.
Have your program repeat this experiment a number of times to estimate the expected number of selections necessary in order that the sum of the chosen numbers first exceeds 1. On the basis of your experiments, what is your estimate for this number..
Define the parameter of interest, and then use it to write the null and alternative hypotheses (in symbols) for the following situation.
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