What is the iverage retum d 4 S. Treasury blls tor 1905 to 1994 ? 14. (Tourd to buo decimul pieces) Historical returns. Calculate the anithmetic average return of U.S. Treasury bills, long-term govern-tent bonds, and large-company stocks lor 1905 to 1994 . Which had the tighest rotum? Which had the lowest return? Click on "Get more help" menu, then solect "Spreadshent" to see Table 8.1-Year-by. Year Petuma, 1950-1999 What is the average retum of U.S. Treasury bills for 1985 to 1994 ? (Round to two decimal places.) What is the iverage retum d 4 S. Treasury blls tor 1905 to 1994 ? 14. (Tourd to buo decimul pieces) Historical returns. Calculate the anithmetic average return of U.S. Treasury bills, long-term govern-tent bonds, and large-company stocks lor 1905 to 1994 . Which had the tighest rotum? Which had the lowest return? Click on "Get more help" menu, then solect "Spreadshent" to see Table 8.1-Year-by. Year Petuma, 1950-1999 What is the average retum of U.S. Treasury bills for 1985 to 1994 ? (Round to two decimal places.)