Suppose that a team of psychologists has recommended that people who experience anxiety attacks should receive regular counseling. The psychologists claim that the counseling sessions provide a therapeutic, or healing, experience. The psychologists promote this type of therapy rather than pharmaceutical treatments. To test the effectiveness of counseling, a researcher randomly selects six people who experience anxiety attacks. These six people are interested in the counseling treatment. The researcher gives each person an anxiety test before and after the person has a counseling session with a therapist. Higher scores on the test indicate a higher level of anxiety in the person taking the test. The anxiety test scores are normally distributed. The test scores of the six people are shown in the table below. Person 1 2 3 4 5 6 Pre-Counseling Score 66 71 80 85 85 90 Post-Counseling Score 64 65 79 81 81 91 A) What does the Null hypothesis say about the mean difference in post-counseling and pre-counseling scores? (psychologist are testing whether or not counseling is effective tool Choose... to aid with anxiety) B) What does the Alternative hypothesis say about the mean difference in post-counseling and pre-counseling scores? (psychologist are testing whether or not counseling is effective Choose... tool to aid with anxiety) C) Is this a 1- tail test or a 2 - tail test? Choose... D) What is the mean difference for post-counseling score and pre-counseling score? (Round to 1 decimal place) Choose... E) Is the p-value less than a level of significance of 0.05? "yes" or "no" Choose... F) Is the p-value less than a level of significance of 0.01? "yes" or "no" Choose... G) Should you reject or fail to reject the null hypothesis? "reject" or "fail to reject" Choose... 44 H) Is there enough evidence to conclude counseling will improve anxiety level? "yes"or "no" Choose...Choose... -2.8 The mean difference is negative. yes reject The mean difference is not 0 -2.4 -2.7 -2.5 fail to reject 2 - tail test 1 - tail test The mean difference is 0. no -2.6