Business, 07.06.2021 16:00, live4dramaoy0yf9
A researcher wants to test the order of integration of some time series data. He decides to use the DF test. He estimates a regression of the form
delta yt = mu + si yt-1 + mut
and obtains the estimate ˆ? = -0.02 with standard error = 0.31.
(a) What are the null and alternative hypotheses for this test?
(b) Given the data, and a critical value of -2.88, perform the test.
(c) What is the conclusion from this test and what should be the next step?
(d) Why is it not valid to compare the estimated test statistic with the corresponding critical value from a t-distribution, even though the test statistic takes the form of the usual t-ratio?
Answers: 3
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At which level will a manager use analytics to make decisions? operational level managerial level strategic level all of the above
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Medtronic, inc., is a medical technology company that competes for customers with st. jude medical s. c., inc. james hughes worked for medtronic as a sales manager. his contract prohibited him from working for a competitor for one year after leaving medtronic. hughes sought a position as a sales director for st. jude. st. jude told hughes that his contract with medtronic was unenforceable and offered him a job. hughes accepted. medtronic filed a suit, alleging wrongful interference. which type of interference was most likely the basis for this suit? did it occur here? medtronic, inc., is a medical technology company that competes for customers with st. jude medical s. c., inc. james hughes worked for medtronic as a sales manager. his contract prohibited him from working for a competitor for one year after leaving medtronic
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Business, 23.06.2019 07:40, Asantetaedog8934
In the short-run, marginal costs are equal to the change in variable costs as output changes. ( mc = change in variable cost / change in quantity) assume that capital is fixed in the short-run. (a) start with the equation for marginal cost and derive an equation that relates marginal cost of production to the cost and productivity of labor. (b) draw a standard looking short-run marginal cost curve and use the equation you derived to explain its shape.
Answers: 2
A researcher wants to test the order of integration of some time series data. He decides to use the...
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