An insurance company is thinking about offering discounts on its life insurance policies to nonsmokers. As part of its analysis, the company randomly selects 200 men who are 60 years old and asks them whether they smoke at least one pack of cigarettes per day and if they have ever suffered from heart disease. (2 = Suffer from heart disease, 1 = Do not suffer from heart disease).. Can the company conclude at the 10% significance level that smokers have a higher incidence of heart disease than nonsmokers?

A study described in which men were classified according to how many anger symptoms they exhibit and whether they have coronary heart disease or not. Among 559 men with the most anger symptoms, 59 had coronary heart disease. Among 199 men with no anger symptoms, 8 had coronary heart disease.

For those with the most anger symptoms, what is the relative risk of heart disease (compared to those with no anger symptoms)?

What is the most common congenital heart disease in children?

Consuming large amounts of saturated fatty acids lowers LDL cholesterol and thus lowers the risk of heart disease and heart attack. T\F

Refer to the Official Guidelines and fill in the blanks.
The codes in category ________ , Hypertensive heart and chronic kidney disease, are ________ codes that include hypertension, heart disease, and chronic kidney disease.

Circle the correct boldface terms to complete the sentences.

Sally was having palpitations in the early evening. An ECG revealed possible left ventricular hypertrophy. Her physician ordered an (ECHO, EUS, UGI) to rule out valvular heart disease.

A study was done to determine whether there is a relationship between snoring and the risk of heart disease. Among 1105 snorers in the study, 85 had heart disease, while only 24 of 1379 nonsnorers had heart disease.

Determine a 95% confidence interval that estimates $P_1 – P_2$ = difference in proportions of nonsnorers and snorers who have heart disease.

Records show that a child of parents with heart disease has a probability $\dfrac34$ of of inheriting the disease. Assuming independence, what is the probability that, for a couple with heart disease that have two children: (a) Both children have heart disease. (b) Neither child has heart disease. (c) Exactly one child has heart disease

Many stores sell extended warranties for products they sell. These are very lucrative for store owners. To learn more about who buys these warranties a random sample of a store’s customers who recently purchased a product for which an extended warranty was available was drawn. Among other variables each respondent reported whether they paid the regular price or a sale price and whether they purchased an extended warranty. Can we conclude at the 10% significance level that those who paid the regular price are more likely to buy an extended warranty?

Which of the following occurs as a result of pulmonary hypertension?
A. Left atrial enlargement
B. Aortic stenosis
C. Coronary artery spasm
D. Right ventricular enlargement

Select the letter of the choice that best completes the statement. The involuntary muscle action of the alimentary canal is called: (a.) pushing (b.) peristalsis (c.) stenosis (d.) contraction

Chest x-ray Report:

The left ventricle is slightly enlarged. Right atrium and right ventricle appear to be dilated. There is tortuosity of the thoracic aorta, with arteriosclerosis. The hilar and interstitial structures are somewhat accentuated. There are large pericardial fat pads. Tricuspid and pulmonic valves appear normal but are not well seen. Mitral valve appears grossly normal for age. Aortic valve appears grossly normal for age.

Where are the pericardial fat pads?

a. in the heart

b. around the heart

c. below the heart

d. beside the heart

e. above the heart

What is the valve between the right atrium and the right ventricle?

Refrigerant-134a enters the expansion valve of a refrigeration system at $160 \mathrm{psia}$ as a saturated liquid and leaves at $30\ \mathrm{psia}$. Determine the temperature and internal energy changes across the valve.