Estimates have been presented to Holly Farms, which is considering two environmental chambers for a project that will detail laboratory confirmations of on-line bacteria tests in chicken meat for the presence of E. coli 0157:H7 and Listeriamonocytogenes. 

(a) If the project will last for 6 years and i = 10% per year, perform an AW evaluation to determine which chamber is more economical. 

(b) Chamber D103 can be purchased with different options and, therefore, at different installed costs. They range from $300,000 to $500,000. Will the selection change if one of these other models is installed? 

(c) Use single-cell spreadsheet functions to solve part (b).

	Chamber D103	Chamber 490G
Installed cost, $	−400,000	−250,000
Annual operating cost,$ per year	−4000	−3000
Salvage value at 10% of P,	$ 40,000	25,000
Life, years	3	2