Question

A medical group studies the ailments of adults with diabetes. Of 8750 adults who are diabetic, 2100 have high cholesterol. Of 12350 adults who are not diabetic, 1482 have high cholesterol. At 99% confidence can you show the proportions of adults with high cholesterol differs depending on being diabetic?

Answer #1

Solution:

Confidence interval for difference between two population proportions:

Confidence interval = (P1 – P2) ± Z*sqrt[(P1*(1 – P1)/N1) + (P2*(1 – P2)/N2)]

Solution:

We are given

P1 = 2100/8750 = 0.24

N1 = 8750

P2 = 1482/12350 = 0.12

N2 = 12350

(P1 – P2) = 0.24 – 0.12 = 0.12

Confidence level = 99%

Critical Z value = 2.5758

(by using z-table)

Confidence interval = (P1 – P2) ± Z*sqrt[(P1*(1 – P1)/N1) + (P2*(1 – P2)/N2)]

Confidence interval = 0.12 ± 2.5758*sqrt[(0.24*(1 – 0.24)/8750) + (0.12*(1 – 0.12)/12350)]

Confidence interval = 0.12 ± 2.5758*0.0054

Confidence interval = 0.12 ± 0.0140

Lower limit = 0.12 - 0.0140 = 0.1060

Upper limit = 0.12 + 0.0140 = 0.1340

Confidence interval = (0.1060, 0.1340)

The proportions of adults with high cholesterol differ depending on being diabetic, because above confidence interval does not contain the value 0.

A study published in JAMA in 2004 examined past results of other
studies on bariatric surgery. Bariatric surgery is done to replace
the size of the stomach in various ways. It is typically used on
only obese patients, and one the traditional form of the surgery,
gastric bypass has a 1% mortality (death) rate caused by the
surgery. However, in the studies reporting on the effects of this
surgery on Type II diabetes, 1417 of 1846 diabetic patients
recovered completely...

Robin Dunbar, a leading anthropologist at Oxford
University who studies social networks, has suggested that there is
a magical number for social networks that humans can manage: any
grouping larger than 150 people becomes overwhelming. With that in
mind, a group of researchers at facebook wanted to study more about
how their average user manages their social networks. In particular
they wanted to study the users with the highest friend counts to
see how they managed. They took a random...

Based on past data, the proportion of Major League Baseball
(MLB) players who bat left handed was 0.481. You are interested to
see if this is still the case. You conduct a sample of 23 players
and find that 10 are left handed hitters. The 95% confidence
interval is ( 0.2322 , 0.6374 ). What is the best conclusion of
those listed below?
Question 6 options:
1)
The confidence interval does not provide enough information to
form a conclusion.
2)...

Please can someone summarize the content below? Thank you.
Medications Work Differently In Older Adults Print
FacebookTwitterLinkedInEmail Medication dose, as well as
information about the effectiveness and side effects of medication,
are generally determined by studies done in relatively young,
healthy people. This information may not apply to older adults,
because our bodies and how we process medications change with age.
As we get older, our bodies react to drugs differently than when we
were younger. The aging process, along...

please answer the following
The laboratory values of a client who has diabetes mellitus
include a fasting blood glucose level of 89mg/dL and hemoglobin A1C
of 6%. What is the nurse’s interpretation of these findings?
The client's glucose control for the past 24 hours has been
good, but the overall control is poor.
The client's glucose control for the past 24 hours has been
poor, but the overall control is good.
The values indicate the client has poorly managed his...

1.Which of the following is an example of moral hazard?
Group of answer choices
There are likely more cars of low quality than of high quality
offered for sale without warranties in the used car market.
An individual who eats well and exercises regularly chooses not
to purchase health insurance.
An individual drives less cautiously after obtaining automobile
insurance.
A car salesman offers a full warranty on a used car for 90
days.
2.
The possible returns to a shareholder...

Findings In a cohort of 2215 adults
with COVID-19 who were admitted to intensive care units at 65
sites, 784 (35.4%) died within 28 days, with wide variation among
hospitals. Factors associated with death included older age, male
sex, morbid obesity, coronary artery disease, cancer, acute organ
dysfunction, and admission to a hospital with fewer intensive care
unit beds.
Meaning This study identified
demographic, clinical, and hospital-level factors associated with
death in critically ill patients with COVID-19 that may be used to...

P.W. Is a 40-year old disabled man who recently lost his wife to
metastatic breast cancer. His brother has taken him into his home.
P.W. has a 22-year history of insulin-dependent diabetes mellitus
(Type-1). Until recently, he has taken responsibility for the
management of his disease and has been actively involved in the
local chapter of the American Diabetic Association. PMH includes 2
amputated toes on his R foot, retinopathy and visual impairment in
both eyes, and angina on exertion...

1. When constructing a confidence interval to estimate a
population proportion, what affects the size of the margin of
error?
A. The sample size
B. The sample proportion
C. The confidence level
D. All of the above affect the size of the margin of error
E. None of the above affect the size of the margin of error
2. What percentage of couples meet through online dating
apps? A survey of a random sample of couples finds that 12% say...

Nursing Care Plan Assignment (1,2&3) Case Study Linda Shaw
is a 56-year-old female who was brought to the hospital by EMS on
December 23, 2019. She presented to the emergency department with
complaints of shortness of breath. She has had a productive cough
for 3 days with a fever. She is admitted to the hospital with
pneumonia and septicemia. She has a history of cellulitis, iron
deficiency, high cholesterol and hypertension. She has an allergy
to penicillin and vancomycin. She...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 5 minutes ago

asked 7 minutes ago

asked 7 minutes ago

asked 7 minutes ago

asked 8 minutes ago

asked 16 minutes ago

asked 23 minutes ago

asked 29 minutes ago

asked 32 minutes ago

asked 32 minutes ago

asked 35 minutes ago