Data Collection

Is this a valid statistical question?

What proportion of New Jersey residents would choose vanilla as their favorite ice cream flavor?

• Yes! You need to collect data to answer this question.

• No! It's just a yes or no question.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

How much Vitamin C does orange juice contain? A nutrition magazine measures the amount of Vitamin C in 50 half-gallon containers of a popular juice brand from 10 different grocery stores.

What is the population in this study?

• The 50 half-gallon jugs of orange juice

• All the jugs of orange juice in each grocery store.

• All of the orange juice the company makes.

• The amount of Vitamin C in each jug or orange juice.

Tags

CCSS.HSS.IC.A.1

How much Vitamin C does orange juice contain? A nutrition magazine measures the amount of Vitamin C in 50 half-gallon containers of a popular juice brand from 10 different grocery stores.

What is the sample in this study?

• The 50 half-gallon jugs of orange juice

• All the jugs of orange juice in each grocery store.

• All of the orange juice the company makes.

• The amount of Vitamin C in each jug or orange juice.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Is this a valid statistical question?

What is the governor's favorite ice cream brand?

• Yes! Data on all ice cream brands are needed to answer this question.

• No! This is just one answer from the governor not a set of data.

A recent study of over 400,000 older people in eight states asked participants whether or not they drank coffee, and followed them for 13 years. The researchers found that coffee drinkers tend to live longer than non-coffee drinkers. What is the population in this study?

• 13 years

• 400,000 people

• All the older people in each of the 8 states

• All the older people in the U.S.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

Which is an example of a bad sample type?

• Stratified Random Sample

• Systematic Random Sample

• Cluster Random Sample

• Convenience Sample

Tags

CCSS.HSS.IC.B.3

What word does this statement describe?

A systematic error in measuring the estimate; favors certain outcomes.

• Survey

• Population

• Bias

• Sample

Undercoverage and nonresponse are types of what?

• Samples

• Populations

• Cluster Random Samples

• Bias

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Your manager wants to know how you feel about your working conditions. What is the best study to get this information?

• Survey

• Observational Study

• Experiment

• Stratified Random Sampling

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Pfizer wants to know how effective their COVID vaccine is. They divide people into two groups and give one group a placebo and another the COVID vaccine. This is what type of study?

• Survey

• Observational Study

• Experiment

• Simple Random Sample

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5