Which is formulated first? Group of answer choices a theorem the research hypothesis the null hypothesis research postulates Flag question: Question 7 Question 71 pts Which is formulated second? Group of answer choices the research hypothesis research theories alternative postulates the null hypothesis Flag question: Question 8 Question 81 pts Unless you have sufficient evidence otherwise, you must assume that ______. Group of answer choices Both the null and alternative hypotheses are true. The alternative hypothesis is true. Neither the null nor alternative hypotheses are true. The null hypothesis is true. Flag question: Question 9 Question 91 pts Which of the following can be tested directly? Group of answer choices the null hypothesis the research hypothesis both the null and research hypotheses all hypotheses Flag question: Question 10 Question 101 pts If there is no difference between sample and population values, you will have a(n) ______ error. Group of answer choices high sampling low but positive sampling no sampling standard