A useful characteristic of money is that money

A. is only printed by the US Government.
B. is difficult to count accurately.
C. is something that everyone wants.
D. allows us to compare the values of goods and services.

Aresearcher developing scanners to search for hidden weapons at airports has concluded that a new scanner isis significantly better than the current scanner. he made his decision based on a test using alpha equals 0.025 .α=0.025. would he have made the same decision at alpha equals 0.10 question mark α=0.10? how about alpha equals 0.01 question mark α=0.01? explain