A 2013 study by pediatricians investigates whether it is better to give children the diphtheria, tetanus and pertussis (DTaP) vaccine in the thigh or the arm. The pediatricians collected the data from two different random samples. The first random sample was collected from children who were given the vaccine in the thigh. The second random sample was collected from children who were given the vaccine in the arm. Pediatricians recorded whether the children had a severe reaction or not. No severe reaction Severe reaction Thigh Observed Expected 4758 4750.9 30 37.1 Arm Observed Expected 8840 8853.1 76 68.9 Reference: Jackson, L. A., Peterson, D., Nelson, J. C., et al. (13 co-authors). 2013. Vaccination site and risk of local reactions in children one through six years of age. Pediatrics 131: 283-289. Pediatricians conducted a chi-square test of independence. The chi-square test statistic for this data is 2.0609 with a P-value of 0.1511. What can the pediatricians conclude?
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Home » Mathematics » A 2013 study by pediatricians investigates whether it is better to give children the diphtheria, tetanus and pertussis (DTaP) vaccine in the thigh or the arm. The pediatricians collected the data from two different random samples.