Assignment Task:
You are trying to improve patient satisfaction scores in your hospital's emergency department. You decide to poll 40 patients a day for three weeks. Your charge nurse says that the quality of service really fluctuates depending on the time of day. Your daily sample consists of 10 patients polled at 8 AM, another 10 at noon, another 10 at 5 PM, and the final 10 at 9 PM. Stratifying data is useful in improvement work because it allows you to: Need Assignment Help? Question options: a) ensure that you have eliminated sampling bias b) find patterns in the data to understand factors at work c) identify the caregivers with the worst outcomes so they can be disciplined d) use a smaller sample size when collecting the data