Lesson 19 AP Stat introduction to planning a study

Observational study where data is studied on a sample of individuals

• Observational study

• Retrospective observational study

• prospective observational study

• survey

Tags

CCSS.HSS.IC.B.3

Studies in which treatments are not imposed (forced)

• Observational study

• Retrospective observational study

• prospective observational study

• survey

Tags

CCSS.HSS.IC.B.3

Observational study in which individuals are followed for future collecting of data

• Observational study

• Retrospective observational study

• prospective observational study

• survey

Tags

CCSS.HSS.IC.B.3

Of the US adult population, 36% has an allergy. A sample of 1200 randomly selected adults resulted in 33.2% reporting an allergy. Who is the population?

• 1200 randomly selected US adults

• 36% of US adult population who has an allergy

• All US adults

• 33.2% of randomly selected adults reporting an allergy

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Of the US adult population, 36% has an allergy. A sample of 1200 randomly selected adults resulted in 33.2% reporting an allergy. Who is the sample?

• 1200 randomly selected US adults

• 36% of US adult population who has an allergy

• All US adults

• 33.2% of randomly selected adults reporting an allergy

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Select 90 students currently enrolled at North Carolina State University and ask how many years they’ve attended the university, how old they are, and if they live on campus.

What is the population?

• All currently enrolled students at NCSU

• All students that have attended NCSU

• 90 students selected that are currently enrolled at NCSU

• 90 randomly selected students in Raleigh, NC.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Select 90 students currently enrolled at North Carolina State University and ask how many years they’ve attended the university, how old they are, and if they live on campus.

What is the sample?

• All currently enrolled students at NCSU

• All students that have attended NCSU

• 90 students selected that are currently enrolled at NCSU

• 90 randomly selected students in Raleigh, NC.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A recent survey of 2625 elementary school children found that 28% of the children could be classified obese. What is the population?

• 2625 elementary school children

• All elementary school children classified as obese

• 28% of elementary school children classified as obese

• All elementary school children

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

A recent survey of 2625 elementary school children found that 28% of the children could be classified obese. What is the sample?

• 2625 elementary school children

• All elementary school children classified as obese

• 28% of elementary school children classified as obese

• All elementary school children

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

a controlled study in which the researcher attempts to understand cause-and-effect relationships by assigning subjects to groups and deciding which treatments each group receives

• survey

• observational study

• experiment

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5