(Solved): WPC300 Quiz 3...

Question 1

Regular consumption of organic food will keep you in a good mood. In this example, the confounder could be

•   people's mood
•   organic foodect!
•   Money
•   work ethics

Question 2

Which of the following is true about A/B testing?

•   You should test multiple elements of your landing page at a time and compare.orrect!
•   To increase conversion rate of your website traffic, A/B testing can be beneficial.
•   A neutral result on an A/B testing means you correctly performed the test.
•   You need to attend WPC 300 course to learn about A/B Testing.

Question 3

After controlling factors such as socioeconomic status, researchers found that music students had a higher SAT score than non-music students. This is an example of __________.Correct!

•   Experimental study
•   Observational Study
•   Comparative study
•    Non-standard study

Question 4

A _______________ is a relationship between two variables that appear to have interdependence or association with each other but actually do not

• .  spurious correlation
•    positive correlation
•    negative correlation
•    non-correlation

Question 5

The first step for any kind of A/B testing is 

•   to execute test according to the plan.!
•   to develop a test plan for what you want to test.
•    to determine how we want to evaluate the performances?
•    to develop a tracking URL.

Question 6

In the experimental design example "IQ Water", students are called _______.

•   measurement units
•    response variable
•   experimental units
•    treatments

Question 7

A/B testing can help marketers to

•   All of the answers are correct
•    Increase more sales
•    Increase more clicks to their website
•    Increase more likes to their social media sites

Question 8

A sample study is mostly done 

•   to estimate the parameters of the population.
•    to establish causality in a controlled environment
•    to rule out any spurious correlation in the data.
•    to learn how different parameters in the population behave together.

Question 9

An experiment is said to be double-blinded  if _________

•   neither the subject nor those working with the subject is aware of who is being given which treatment
•    a placebo is given to some of the subjects
•    the researcher is not aware of the confounding effect
•    the researchers only observes the variables of interest

Question 10

Which of the following statements is NOT true about experimental studies to compare two treatments?

•   We can design experiments so that the error in the comparison is small.
•   It is not easy to control uncertainties in the comparison..
•    Experiments allow us to set up a direct comparison between the treatments of interest.
•    We can design experiments to minimize any bias in the comparison.