The following table contains data that were obtained from a…
Questions
The fоllоwing tаble cоntаins dаta that were obtained from a hypothetical study of cervical cancer and long-term use of oral contraceptives. Those who consented were first examined for the presence of precancerous or cancer cells, using the pap smear test, and were only enrolled to participate if they had no sign of cervical cancer. The study took 40 years of two (2) yearly examinations. NB. Do not round-off the answers.Oral contraceptives Cervical cancer TotalYesNo Yes30050350No 10050150Total 400100500 Select the appropriate study design with a reason for the above scenario.