The owner of Kat Motel wants to develop a time standard for the task of cleaning a cat cage. In a preliminary study, she observed one of her workers perform this task six times, with the following results:Observation 1 2 3 4 5 6Time (secs) 109 117 117 128 125 129Required:What is the normal time for this task if the employee worked at a 32 percent slower pace than average and an allowance of 14 percent of job time is used?

In order to calculate the time for this task if the employee worked at a 32 percent slower pace than average, we need to calculate the normal time first by using the following formula

Normal Time = Average element-time / performance rating

Average element time = Sum of observations / No. of observations

Average element time = 109 +117 +117 +128 +125 +129 / 6

Average element time = 725/6 = 120.83

Performance rating = 100 - 32 = 68%

Normal Time = 120.83 / 0.68 = 177.7 secs

Standard Time = Normal Time / (1-Allowance)

Standard Time = 177.7 / (1-0.14)

Standard Time = 206.6 secs