1.

 Brown’s, a local bakery, is worried about increased costs—particularly energy. Last year’s records can provide a fairly good estimate of the parameters for this year. Wende Brown, the owner, does not believe things have changed much, but she did invest an additional $3,500 for modifications to the bakery’s ovens to make them more energy-efficient. The modifications were supposed to make the ovens at least 15% more efficient. Brown has asked you to check the energy savings of the new ovens (Calculate Labor, Capital Invested, Energy, and multifactor productivity) and also to look over other measures of the bakery’s productivity to see if the modifications were beneficial. You have the following data to work with:

LAST YEAR

NOW

Production (dozen)

2.

 Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a new contract are given in the following table:

Activity

Immediate Predecessor(s)

Time Estimates (in weeks)

Optimistic (a)

Most Likely (m)

Pessimistic (b)