For an activity with more than one immediate predecessor activity, which of the following is used to compute its earliest finish (EF) time?
a. the largest EF among the immediate predecessors.
b. the average EF among the immediate predecessors.
c. the largest LF among the immediate predecessors.
d. the difference in EF among the immediate predecessors.
Question 2
The interval estimate of the mean value of y for a given value of x is the _____.
a. confidence interval
b. prediction interval
c. residual interval
d. correlation interval