Four employees who work as drive-through attendants at a local fast-food restaurant are being evaluated. As part of a quality improvement initiative and employee evaluation, these workers were observed over three days. One of the statistics collected was the proportion of time the employee forgot to include a napkin in the bag. Also recorded was the proportion of all dinners packed by each employee. Related information is given in the table. You just purchased a dinner and found that there is no napkin in your bag. What is the probability that Jan prepared your order?
A) 0.200
B) 0.004
C) 0.018
D) 0.075
E) 0.100

Question

Four employees who work as drive-through attendants at a local fast-food restaurant are being evaluated. As part of a quality improvement initiative and employee evaluation, these workers were observed over three days. One of the statistics collected was the proportion of time the employee forgot to include a napkin in the bag. Also recorded was the proportion of all dinners packed by each employee. Related information is given in the table.  You just purchased a dinner and found that there is no napkin in your bag. What is the probability that Jan prepared your order?
A) 0.200 
B) 0.004 
C) 0.018 
D) 0.075 
E) 0.100

Quizplus · Accepted Answer

P(Jan | No napkin) === .0755

Four Employees Who Work as Drive-Through Attendants at a Local