Does Taking Large Amounts of Vitamins Protect Against Cancer? to Study

question 4

Multiple Choice

Does taking large amounts of vitamins protect against cancer? To study this question, researchers enrolled 29,000 Finnish men, all smokers over the age of 50. Half of the men, selected at random, took vitamin supplements, and others took a dummy pill that has no active ingredient. The researchers followed all the men for eight years. At the end of the study, men in the vitamin group were no less likely to have cancer than men in the other group. This study cast doubt on the popular idea that taking lots of vitamins can reduce the risk of cancer.
The study design looked like this:
The method used to form the groups should appear in the outline at the point marked "Question A." What is this method?

• A) Random allocation
• B) Voluntary response
• C) First come, first served
• D) Divide and conquer
• E) Stratified sampling

Understand the concept of tax incidence and its economic implications.

Evaluate consumer and producer surplus changes due to tax imposition.

Identify the development stages and psychological traits of infants.

Understand the concept and significance of attachment in infant development.

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Definitions:

Legislative History

The recorded events, discussions, and documentation leading up to the passing of a law.

Investigative Committees

Groups or panels formed to examine and report on specific matters of concern, often within governmental or corporate contexts.

Olympic Airways v. Husain

A legal case in which the U.S. Supreme Court held that an airline could be liable for damages under the Warsaw Convention for failure to assist a passenger leading to the passenger's death.

Warsaw Convention

An international treaty that regulates liability and other legal aspects of international air travel.