When activity times are uncertain, a. assume they are normally ...

[michelleunicorn]

When activity times are uncertain,
 a. assume they are normally distributed.
  b. calculate the expected time, using (a + 4m + b)/6.
  c. use the most likely time.
  d. calculate the expected time, using (a + m + b)/3.

Question 2

In a residual plot against x that does NOT suggest we should challenge the assumptions of our regression model, we would expect to see a _____.
 a. horizontal band of points centered near 0
  b. widening band of points
  c. band of points having a slope consistent with that of the regression equation
  d. parabolic band of points

[brbarasa]

Answer to Question 1

B

Answer to Question 2

a