Answer:
b) 0
Explanation:
In this case, the manager observed that a worker spent 50% of his/her time mowing the garden, but in case this is correct, it would only apply to this worker. She would need to collect data and analyze it from a much larger sample which includes other workers in order to determine if this proportion applies to whole group. You cannot infer a conclusion based on a limited amount of data collected from just one subject. The methodology is incorrect.
