Neuroblastoma is a rare, serious, but treatable disease. The prevalence of this disease is 8.3%. A study of the screening test for neuroblastoma, the VMA test (a urine test), gave the following data:

	Neuroblastoma— NO	Neuroblastoma— YES
VMA Test Result— Negative	386	92
VMA Test Result— Positive	114	392

a. Calculate the probability of a false negative for the VMA test.

b. Calculate the predictive value negative of the VMA test.