Critical thinking and sample data collection

Part I- Population

Explain what it means that a sample must be representative of the population.

Part II

Mention some of the factors that affect choosing a sample instead of a population when conducting a statistical study.

Part III

Based on the knowledge learned about population and sample, answer: If you had the opportunity to carry out a statistical study on NUC University students, what would you use, a population or a sample? Explain

Part IV- Finite and infinite population

Present two (2) examples of a finite population and two (2) examples of an infinite population.

Part V

Sources for obtaining data for a study could be experiments, surveys, and records. What is the difference between an experiment and a survey?

Part VI

Determine if the given description corresponds to an observational study or an experiment: Patricia Ramos, 11 years old, became the author of an article in the Journal of the American Medical Association, after putting therapists to the test. professional contact. Using a cardboard divider, she placed her hand on top of the therapist's hand, who had to identify the hand that Patricia had chosen .

Part VII

Identify the type of observational study (cross-sectional, retrospective, or prospective) and explain the reason for your selection: A group of physicians studied New York City residents with and without respiratory problems. They went back in time to determine how involved they were in the New York City terrorist attacks on September 11, 2001.

Part VIII

The Puerto Rican Publications company has commissioned you to conduct a survey of 100 student users of its Spanish book. Describe the procedures for obtaining a random sample.