d. Test the hypothesis that By-By 5.12. In their study of the demand for international reserves (i.e., foreign reserve cur- rency such as the dollar or International Monetary Fund (IMF) drawing rights), Mohsen Bahami-Oskooee and Margaret Malixi" obtained the following regres- sion results for a sample of 28 less developed countries (LDC): In(R/P) 0.1223+0.4079 In(Y/P) + 0.5040 In app-0.0918 In Ex -(2.5128) (17.6377) R2-0.8268 F-1151 (15.2437) (-2.7449) #1120 where R the level of nominal reserves in U.S. dollars P-US. implicit price defiator for GNP Y the nominal GNP in U.S. dollars app the variability measure of balance of payments Ex the variability measure of exchange rates (Notes: The figures in parentheses are t ratios. This regression was based on quarterly data from 1976 to 1985 (40 quarters) for each of the 28 countries, giving a total sample size of 1120.) a. A priori, what are the expected signs of the various coefficientsfi Are the results in accord with these expectationsfi b. What is the interpretation of the various partial slope coefficientsfi