Calculate the probability of surviving 5 years using the data from Table 8.
Probability of Survival for Each Year of the Study
P1 = 52.5%
P2= 46.1%
P3 = 65.5%
P4= 69.6%
P5 = 80.0%
P6 = 95%
P7 = 98%
Calculate the power of a study given that the probability of a type I error is 0.05 and the probability of type II error is 0.80.