An experiment is designed to investigate the impact of differentpositions of the mother on fetal heart rate. Fetal heart rated ismeasured by ultrasound in beats per minute. the study involved 20women who were assigned to one position and had the fetal heartrate measured in that position. Each woman was between 28 and 32weeks gestation. the data shown in Table 7-47. Is there asignificant difference in mean fetal heart rates by position? Run atest at a 5% level ofsignificance.
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