21- 29 The AAS, American Association of Statistics claims students who take statistics spend on average 22 hours a week working. The population standard deviation is not known. Statistics students in MAT 222 believe students work more than 22 hours so as to earn more money. A sample of 31 statistics students shows mean time of 27 hours per week, with a sample standard deviation of 11.9 hours. For questions 21-29, use a significance level of 5%. By responding to the questions we will develop a Hypothesis test to determine if the students claim is correct. 21 What is the Null Hypothesis and Alternate Hypothesis? Choose one from the selection of a-h to answer both parts of the question. a Hou = 22 Hau =27 e Ho u = 22 Ha u 27 f Ho u =22 Ha u > 22 C Hou = 27 Hau =22 g Hou = 22 Ha u =/=22 d Hou = 27 Ha u > 22 Hou = 27 Ha u =/=27