Warm Up 9/8 Stats Reasoning

An experiment is conducted to test which kind of cat food a cat likes best. The amount of food the cat eats is recorded and four different type of food are tested. What is the response variable?

• The cat food

• The cat

• The amount of food the cat eats.

• The bowl the cat ate out of.

Research Question: Does the type of gasoline put in a car effect how fast the car can drive? What is the treatment?

• Type of gasoline

• which car the gas is put into

• how fast the car can drive

• how much gas is put into the car

Source of bias in which some groups of populations are LEFT OUT of the selection process

• Response Bias
• Undercoverage
• Convenience Sampling
• Voluntary Response

Tags

CCSS.7.SP.A.1

The teacher samples her class by selecting all students sitting at group 1 and group 5 in her classroom.  This sampling technique is called?

• SRS
• Stratified
• Systematic
• Cluster

Tags

CCSS.HSS.IC.B.3

Each student in the school is given a different number.  A student is randomly selected from the first 25. That student and every 25^th student thereafter are in the sample.  This is what type of sampling design?

• SRS
• Systematic
• Multistage
• Stratitfied

An SRS of 25 students is taken from each grade to form the sample.  This is what type of sampling design?

• Cluster
• SRS
• Stratified
• Multistage

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

Starting at 8:00 Monday morning the first 50 students entering the front doors are selected to be in the sample.  This is what type of sampling design? 

• Systematic
• Voluntary Response
• Cluster
• Convenience