Suppose we wish to test h0: mu < = 47 versus h1: mu: > = 47. what will result if we conclude that the mean is greater than 47 when its true value is really 52?

the answer is c i took the test

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.