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A new screening test for cervical cancer was administered to 2,958 women with biopsy-proven cervical cancer and to 4,338 women without cervical cancer. The new screening test was positive for 1,506 cases of cervical cancer but 691 women also tested positive despite not having cervical cancer. Calculate positive predictive value and express your answer as percentage with two decimals. Hypothetical scenario: A randomized controlled trial (RCI') is planned to assess the usefulness of a new anti-hypertensive drug. After baseline measurements study participants are randomized into three groups; group A to receive high dose of the new drug, group B to receive lower dose of the new drug and group C to receive the currently used anti-hypertensive drug. Mean BP will be compared at the end of the trial between three groups for any significant difference. To do this an Independent Samples t test can be used to compare two groups at a time and if this test is conducted three times it can compare all possible pairs but why this test will be a poor and incorrect choice in this scenario? 0 Because P value for multiple comparisons is likely to be >.05 0 Because it is more likely to miss if there was signicant difference between any of the two pairs. 0 Because the possibility of type I error will be much less than 5%. 0 Because it will be more time consuming. 0 Because the possibility of type I error will be much greater than 5%