{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

chapter 1notes

# chapter 1notes - STA 2023 Elementary Statistics Lecture...

This preview shows pages 1–3. Sign up to view the full content.

STA 2023 Elementary Statistics Lecture Notes Chapter 1 – Introduction to Statistics Professor Achenbach Introduction Statistics - the science of collecting, organizing, analyzing, and interpreting Data. Chapter 1: Collecting Data Chapter 2: Organizing/Analyzing Data Chapters 3-8: Interpreting Data Types of Data Sets Population - data set consisting of all outcomes, measurements, or responses of interest Sample - data set which is a subset of the population data set Examples: If we are interested in measuring the salaries of American high-school teachers, the population data set would be a list of the salaries of every high-school teacher in America. A sample data set could be obtained by selecting 100 high-school teachers from a across the country and listing their salaries. A polling organization wants to know whether Americans favor increased defense spending. The population data set would consist of the responses of every American. A common way of choosing a sample data set would be to randomly call 1000 Americans and gather their responses to the question of whether they favor increased defense spending. A biologist wants to measure the weights of female Alaskan grizzly bears. What would be the population data set? A possible sample set? 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Types of Measurements Parameter - a numerical measurement made using the population data set Statistic - a numerical measurement made using a sample data set Examples: Using the teacher salary data sets, we could calculate the average salary for the high-school teachers.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern