which of the following statements is true? 1 the statistical hypothesis is one that is calculated through improper integrals Wwwww 2 The null hypothesis is one that is known. 3 The alternative hypothesis is the one that you want to test. a) 1 b) 1 and 2 c) 1 and 3 d) 2 and 3 e) 1, 2 and 3