Complete following problems related to screening.
1. Your screening facility can procedure 1000 patients per week. If you're attempting the early detection of the disease with prevalence of 2%, and you test has the sensitivity of 95% and specificity of 90% how many of the people screened in week will test positive?
2. Of these people testing positive, in how many will the results be truly positive and in how many will they be falsely positive?
3. Find out the predictive value of a positive test?