=+6.16 Researchers at UCLA were interested in whether working mothers were more likely to suffer workplace injuries than women without children. They studied 1400 working women, and a summary of their findings was reported in the San Luis Obispo Telegram-Tribune (February 28, 1995). The information in the following table is consistent with summary values reported in the article:

Children, No Children but None Children Under 6 Under 6 Total Injured on the Job in 1989 32 68 56 156 Not Injured on the Job in 1989 368 232 644 1244 Total 400 300 700 1400