Consider the data in Table 15.1, which is correct and most complete?

a. Analysts are almost always given data in a format that make analysis easy.

b. Making up data can never increase the believability of analysis results.

c. The missing data point in Table 15.1

(a) could be worth saving to produce relatively accurate forecasts.

d. All of the above are correct.

e. All of the above are correct except

(a) and (d).