Houston North Hospital is trying to improve its image by providing a positive ex
ID: 447698 • Letter: H
Question
Houston North Hospital is trying to improve its image by providing a positive experience for its patients and their relatives. Part of the "image" program involves providing tasty, inviting patient meals that are also healthful. A questionnaire accompanies each meal served, asking the patient, amount other things, whether he or she is satisfied or unsatisfied with meal. A 50-patient sample of the survey reslts over the past 7 days yielded the following data: The control limits to include 99.73% of the random variation in meal satisfaction are: UCL_p = (enter your response as a number between 0 and 1 rounded to three decimal places).Explanation / Answer
To solve this problem, P chart is prepared.
Day
No. of Unsatisfied Patients
Sample Size
Proportion (P)
1
22
50
0.44
2
20
50
0.4
3
10
50
0.2
4
15
50
0.3
5
10
50
0.2
6
26
50
0.52
7
15
50
0.3
total =
118
350
(Average) P’ = Total no. of Dissatisfaction / Total sample
P’ = 118/350 = .3371
n’ (average no. of sample per week) = Total no. of sample / total no of week = 350/7 = 50
Upper Control Limit (UCLp) = P’ + 3*((P’)*(1-P’)/n’)^.5
UCLp = .3371 + 3*((.3371*(1-.3371)/50)^.5
UCLp = .537
Day
No. of Unsatisfied Patients
Sample Size
Proportion (P)
1
22
50
0.44
2
20
50
0.4
3
10
50
0.2
4
15
50
0.3
5
10
50
0.2
6
26
50
0.52
7
15
50
0.3
total =
118
350
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.