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In a case-control study of the association between pesticide exposure and miscarriage. 100 cases who experienced a miscarriage were matched with 100 women with normal delivery (controls). All subjects were interviewed to determine their exposure to the pesticide. The results are shown in the table below.| Controls Total Exposed U nexposed Cases Exposed 5 32 37 U nexposed 3 60 63 Total 8 92 1 00 a. What is the odds ratio of pesticide exposure associated with miscarriage? b. If you ignore the matching structure and rearrange the data to a grouped case-control study and re-calculate the odds ratio, what number would it be? c. Compare the two odds ratios and briefly comment