PLEASE DO IN EXCEL   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.  Is there a significant difference in mean fetal heart rates by position?  Run the test at a 5% level of significance.     Back Side Sitting Standing                                                                   140 141 144 147                                                                   144 143 145 145                                                                   146 145 147 148                                                                   141 144 148 149                                                                   139 136 144 145                                                                   Mean = 142.0 Mean = 141.8 Mean = 145.6 Mean =146.8

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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. 

Is there a significant difference in mean fetal heart rates by position?  Run the test at a 5% level of significance.

 

  Back Side Sitting Standing                                                                
  140 141 144 147                                                                
  144 143 145 145                                                                
  146 145 147 148                                                                
  141 144 148 149                                                                
  139 136 144 145                                                                
  Mean = 142.0 Mean = 141.8 Mean = 145.6 Mean =146.8                                                                
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