Answer Happy

How big is your family? A survey asked a sample of 2780 adults how many children they had, and also how many siblings (brothers and sisters) they had. The results are summarized in the following contingency table. Number of Children Siblings 0 1 2 3 4 More than 4 4 0 92 115 140 126 44 10 1 83 103 139 146 49 9 2 79 107 145 122 35 17 3 71 96 147 130 45 30 4 90 95 145 147 32 19 More than 4 89 98 154 129 26 15
Part: 0/2 Part 1 of 2 (a) Compute the expected frequencies under the null hypothesis. Round your answers to two decimal places. Number of Children Siblings 0 1 2 3 4 More than 4 0 103.74 147.00 135.17 39.03 16.90 1 85.48 104.14 147.56 135.68 39.18 16.96 2 81.60 140.86 37.40 16.19 3 83.87 102.17 144.77 133.12 38.44 16.64 4 85.32 147.28 39.11 16.93 More than 4 82.57 100.59 142.54 131.07 37.85 16.38 Х