Thread: Probability and statistics help

Hey I was wondering if someone could double check my work on this problem:

Consider a disease present in 1 in every 2 members of a population. A diagnostic test for this disease has sensitivity = specificity. Is it true that testing positive and having the disease are independent events? Justify.

Given: P(D l +)

Originally Posted by cb22hawk

Hey I was wondering if someone could double check my work on this problem:

Consider a disease present in 1 in every 2 members of a population. A diagnostic test for this disease has sensitivity = specificity. Is it true that testing positive and having the disease are independent events? Justify.

Given: P(D l +)

I've double checked and triple checked and can confidently confirm that there's no work here to check.

By the way, I doubt very much that testing positive and having the disease are independent events.