Frictional unemployment a. can be created both by workers quitting to find more suitable jobs and changes in a country's comparative advantages. b. can be created by workers quitting to find more suitable jobs but not by changes in a country's comparative advantages. c. can be created by changes in a country's comparative advantages, but not by workers quitting to find new jobs. d. is not created by workers quitting to find more suitable jobs nor by changes in a county's comparative advantages.

Acompany is developing a new high­performance wax for cross country ski racing. in order to justify the price marketingwants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less thanseconds for a former olympic champion. to test it, the champion will ski the course 8 times. the champion's times(selected at random) are 59.9 61.9 48.8 52.2 46.6 45.3 50.6 and 41.1 seconds to complete the test course. complete parts a and b below.a) should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are metfor the sample.assume=0.05. what are the null and alternative hypotheses? choose the correct answer below.b) suppose they decide not to market the wax after the test, but it turns out that the wax really does lower the champion'saverage time to less thanseconds. what kind of error have they made? explain the impact to the company of such anerror.

Which type of data is generally stored in different file formats, such as text files, spreadsheets, and so on?

Which is one solution to levy the complexity of the global matrix strategy with added customer-focused dimensions?