7202%20Questions.pdf 5 / 10 100% + Problem B 10 points (# 21 -30) 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 Hou = 22 Hau 27 f Ho u =22 Ha u > 22 C Hou = 27, Ha u =22 g Ho u = 22 Ha u =/=22 d Hou =27 Hau > 22 h Hou = 27 Ha u =/=27 MacBook Air DII DD F10 F11 F5 F6 F7 F8 F9 RO 8 OAT102_OLGH_SP22/messages/_1067464_1/Project%20P4%20BB%202%20Questions.pdf 6 / 10 100% + 22 Given all the information in the example determine the type of distribution you would use for the hypothesis test. a Normal distribution with a mean of 22 b Z distribution with a mean of 27 hours c Probability Density Distribution with sample size 31 d t distribution with a mean of 22 hours. e t distribution with a mean of 27 hours. 23 In the previous question what was the deciding point of information that lead you to your choice for your answer . a The absence of a population standard deviation b The size of the sample size. C The size of the sample standard deviation was exactly half the size of the sample size. d This was just a one sample hypothesis test. What is the value of the Distribution of Sample Means 24 standard deviation? 5.57 a 4.84 b C 11.9 2.14 MacBook Air DD DII DD F10 F11 F7 F8 F9 F4 F5 F6 % & O 5 6 8 9 P+ _OLGH_SP22/messages/_1067464_1/Project%20P4%20BB%202%20Questions.pdf 7 / 10 - 100% + 25 In the graph below, various regions and locations are labeled. to Choose the labeled region(s) or location(s) (A - G) that best fits the 29 location of the statistical terms given below: NOTE: A letter ( A - G ) may be used more than once. Statistical Term Given | Is at Location (A- G) ? Location of Pop Mean 26 Reject region(s) 27 Fail to Reject Region(s) 28 Location of critical cutoff 29 Size of Rejection Region Number answer: D B Assume we completed another test with a rejection region in the right tail and the test statistic was 123.07 and the critical value was 136,72. What would be your formal, final decision? Note: Only 1 answer is correct. 30 A Reject Ha C Fail to Reject Ha B Reject Ho D Fail to Reject Ho MacBook Air DII DD F11 F10 F9 F5 F6 F7 F8 &