Bias
Experiments vs Observations
Sampling
Random Trivia #1
Random Trivia #2
100

Wording of the question is a way to bias data.  T or F?

True

100

You are doing an experiment on tomato plants.  Some plants get the new fertilizer and some get the old fertilizer.  When the tomatoes are ripe, taste them and see which ones are juicier.

What are the experimental units?

The tomato plants

100

Which method of sampling takes every 10th person from a list?

Systematic

100

How much is a Caniac Combo at Canes?  Before tax

15.99

100

What is Post Malone's favorite restaurant?

Chilis

McDonalds

Canes

Pappacitos

Canes

200

You want to know how PCA students feel about Sage, so you go to the 9th grade Bible class and ask those students.  

This idea suffers from which type of bias (mostly)?

Convenience, Undercoverage, Nonresponse, Response

Undercoverage

200

Back to the tomato plants problem.  What is the response variable?

measuring how juicy the tomatoes are at the end of the experiment

200

Which sampling method would take some students from each grade level in order to find out something about all PCA students?

Stratified

200

Who is the oldest?

Mr. Wyss

Mr. Morton

Mr. Bannis

Mr. Lee

Mr. Lee

200

Which Marvel movie's soundtrack won 2 Grammy awards?

Avengers

Captain America

Black Panther

Black Widow

Black Panther

300

Doing simple random sampling reduces bias in samples because you leave everything to chance.  T or F?

True

300

Which method allows you to determine cause and effect?  Treatments cause what happens.

Observational studies OR Experiments

Experiments

300

Which method of sampling would divide a forest into sections and then randomly choose a section and go sample all the trees in that section?

Cluster
300

How many minutes and seconds is the world record for mile time?  

Need to be within 15 seconds of the record to get this correct

3 minutes

43 seconds

300

What is the world record for the least amount of time for a car to go a quarter mile?  

You can think of drag racing cars...

Must be within a half second

3.22 seconds

400

How do you feel about the Sky Ranch retreat where the busses broke down on the way there?  

This question illustrates which form of bias?

Convenience, Undercoverage, Nonresponse, Response

Response

400

What is blinding in an experiment?

When the person receiving the treatment and/or the person measuring the response does NOT know which treatment was given/received.  

400

How would you do a simple random sample of 50 students if there were 500 total students to choose from?  Explain

Use a random number generator.  Give each student a number from 1 to 500.  Use randintnorep (1,500,50) to choose the 50 students.  

400

Now that OU, UT, and A&M are all in the SEC conference starting this year, what is the mascot for ...

Auburn?

Kentucky?

LSU?

Tigers

Wildcats

Tigers

400

Which president is #2 all time for net worth?  How much money all of their stuff is worth.  

This is a president no longer alive, but lived in the 20th century.

JFK

3.1 Billion dollars

500

You learn that 90% of Churchgoers drink coffee by talking to the first 25 adults you see at PCA one morning.  

This situation suffers from which form of bias?

Convenience, Undercoverage, Nonresponse, Response

Convenience

500

What are 3 characteristics of a good experimental design?

Replication

Random assignment of treatments

Control variables

Blocking

Blinding

500

Which variables below are categorical?

Mile Time

Phone number

Eye Color

Number of hairs on a persons head

Phone number

Eye Color

500
Billie Eilish is obsessed with which TV classic?


Friends

Seinfeld

The Office

The Office

500

What state was Tupac Shakur born in?

Illinois

New York

California

Texas


New York

East Harlem