Answer:
c. would be 100% if the sample information were perfect
Step-by-step explanation:
EvSI is the expected value of sample information while EVPI is the Expected Value Perfect Information
The efficiency of a sample is simply the ratio of the Expected value of Sample Information to the Expected Value of Perfect Information
it is between 0 and 1
a. is the EVSI/(maximum EMV without SI) expressed as a percentage is not true
b is the EVPI/EVSI expressed as a percentage. is also not true as the efficiency is the EVSI/EVPI ex[pressed as a percentage
d. is computed using only the EVPI and the maximum EMV. is also not true, we have to calculate EVSI from EMV .
\C. is correct, would be 100% if the sample information were perfect.