Suppose that an obstetrician wants to know whether the proportion of children born on each day of the week is the same. He randomly selects 500 birth records. The obstetrician conducts a goodness-of-fit test in which the hypothesis tested is that the day on which a child is born occurs with equal frequency at the level of significance of 1%. Given the data shown in the table, what is the value of the chi-square statistic? Day of Week Frequency Sunday 72 Monday 64 Tuesday 52 Wednesday 80 Thursday 75 Friday 74 Saturday 83 9.24 9.42 4.92 2.49