Some Environmental Scientists Have Interviewed Residents in a Community Where

question 19

Multiple Choice

Some environmental scientists have interviewed residents in a community where there are many fuel processing plants. It seems that there is a high cancer rate in the area. Which of the following will provide the scientists with the data they need for 100% certain results that the cancer rates are directly correlated to the fuel processing plants?

• A) Surveys of residents affected by cancer and how close they live to the processing plants
• B) Blood tests of those with cancer who live near the processing plants
• C) Blood tests of people before they move near the plants and then a few years later after living near the plants
• D) All of the above
• E) None of the above

---

Definitions:

Employer's Payroll Taxes

Taxes that employers are required to pay on behalf of their employees, such as social security and Medicare taxes in the United States.

Federal Income Tax

The tax levied by the IRS on the annual earnings of individuals, corporations, trusts, and other legal entities.

Unemployment Compensation Taxes

Taxes imposed on employers that fund unemployment insurance benefits for laid-off workers.

Form W-2

A tax form used in the United States to report wages paid to employees and the taxes withheld from them.