Red Deer College promotes a wide variety of executive training courses for firms in the Red Deer area. Director Marilyn Heirs believes that individually typod lotters add a personal touch to marketing. To prepare letters for maling, she conducts a time study of her secretaries. On the basis of the obsorvations shown in the following table, she wishes to develop a time standard for the whole job The college uses a total allowance factor of 12%. Helms decides to delete all unusual cbservations from the time study - Disregard-secretary stopped to answer the phone ^ Disregard-interruption by supervisor The standard time for this process is minutes (round your response to two decimal places)