Sampling Methods Review

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.

• Simple Random

• Systematic Random

• voluntary response

• convenience

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.

• simple random

• Voluntary Response

• Convenience

• Systematic Random

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the five closest to her desk.

• simple random

• Self Selected.

• Convenience

• Systematic Random

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

You stand in front of the school and survey every 10th student that walks in.

• Simple Random Sample

• Stratified

• Systematic

• Cluster

• Convenience

You get a numbered list of all the classrooms at Alter. You use a random number table to pick 10 of them to sample for cleanliness.

• Simple Random Sample

• Stratified

• Cluster

• Systematic

• Convenience

You are surveying students on their opinion about the retreat social activity. You split the student body into two groups "Athletes" and "non-athletes". You then pick some students from each group to survey.

• Simple Random Sample

• Convenience

• Cluster

• Stratified

• Systematic

At a factory that produces Chromebooks the factory foreman inspects every 20th Chromebook produced to check for quality assurance.

• Systematic

• Convenience

• Stratified

• Simple Random

• Cluster

In order to estimate the percentage of defects in a recent manufacturing batch, a quality control manager at Intel selects every 8th chip that comes off the assembly line.

• simple random sample

• convenience

• Stratified

• Cluster

• Systematic

A mayor divides the residents of her city into three income classes; low, middle, and high. She then takes a sample from EACH of the classes to survey them about taxes.

• Convience

• cluster

• stratified

• systematic

• simple random