Grumman Manufacturing has implemented several programs to improve its productivity. Their target was to increase the productivity by 12% in 2020. They have asked you to evaluate the firm's productivity by comparing 2020's performance with 2019. Labor costs average $20 per hour and each kWh costs 20 cents. The following data are available. Year = 2019 Year = 2020 Output 21,000 units 24,200 units 2400 2640 Labor Hours 1 Energy (kWh) 76,000 82,200 Overhead $16,600 $16,000 a. What is the total labour cost for 2019? b. What is the energy cost for 2019? c. What is the multifactor productivity per $ input for 2019? 0.3233/$ 3.7993/$ 0.2632/$ 0.3322/$ 0.4374/$ 000 for 2002 0.4374/$ d. What is the total labour cost for 2020? e. What is the multifactor productivity per $ input for 2020? 0.2837/$ 3.5248/$ 0.3438/$ 0.3832/$ 0.4583/$ f. What is Grumman Manufacturing's productivity improvement between 2019 and 2020? 8.62% 7.79% 0.89% -8.62% 7.22% Has Grumman reached their target (yeso?) and discuss why