e... sawwwuw ....4 Chapter 7 (2) HW Note 1: For all these problems, please follow the 5 step hypothesis testing procedure as explained in the textbook. The five steps are as follows: Step I: Set up hypothesis and determine the level of significance Step 2: Select appropriate test statistic Step 3: Set up the decision rule Step 4: Compute the test statistic Step 5: Conclusion Note 2: For a list of all test statistic formulae please refer to page 161 Ofthe tCthOOk l) The following data were collected in an experiment designed to investigate the impact of different positions of the mother during ultrasound on fetal heart. rate. Fetal heart rate is measured by ultrasound in beats per minute. The study Includes 20 women who are assigned to one position and have the fetal heart rate measured in that position. Each woman is between 28-32 weeks gestation. The data are shown below. - Side 141 140 - 143 146 145 - - - -- A Jk 136 Mean = 142.0 Mean = 141.8 Mem =146.8 Is there a significant difference in mean fetal heart rates by position? Run the test ata 10% level of significance. / Hint: The above problem pertains to Test Statistic: "continuous outcome, more than two independent samples" / F - Test / ANOVA. For a textbook example, please refer to pages 147 to 155 ofthe tethook 1442) Suppose a hypertension trial is mounted and 21 parti to one of the comparison treatments, Each partnerpan medication and their systolic blood pressure (SBP) lS reCOI' assigned treatment. mama are as follows. Standard Treatment New Treatment -fl--E- -I. mi- 125 -I. -E- -E- cipants are randomly assigned t takes the assigned ded after 6 months on the Is there a difference in mean SBP among treatments? Run the appropriate test at a=0.05 Hint: The above problem pertains to Test Statistic: "continuous outcome, more than two independent samples" / F - Test / ANOVA. For a textbook example, please refer to pages 147 to 155 ofthe textbook