A work sampling method is used to determine the proportion of the time a machine is idle. The following information was gathered on a random basis
Day No. Times
Clerk Idle Total No. of Observations
Monday 4 12
Tuesday 2 8
Wednesday 4 10
Thursday 2 10
What is the proportion of idle time observed for this machine?
A) less than or equal to 5%
B) greater than 5% but less than or equal to 15%
C) greater than 15% but less than or equal to 25%
D) greater than 25%
C
Business
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A) Two years. B) Five years. C) Three years. D) One year.
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Indicate whether the statement is true or false
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