4-a. Refer to the original data. Instead of doing the major upgrade to the equipment, management is considering introducing a new advertising campaign that will increase fixed expenses by $12,000 per month. Management believes the new advertisements will increase monthly unit sales by 10%. In this case what would be imapact on operating income Operating income increase by decrease by 4-b. Should Frieden proceed with the new advertising campaign? Yes No 4-a. Refer to the original data. Instead of doing the major upgrade to the equipment, management is considering introducing a new advertising campaign that will increase fixed expenses by $12,000 per month. Management believes the new advertisements will increase monthly unit sales by 10%. In this case what would be imapact on operating income Operating income increase by decrease by 4-b. Should Frieden proceed with the new advertising campaign? Yes No