Graded Quiz: Experimental Design and Testing :Statistics Foundations (Meta Marketing Analytics Professional Certificate) Answers 2025

Question 1

What type of error falsely rejects the null hypothesis in favor of the alternate hypothesis?

• ❌ Type AB error

• ✅ Type 1 error

• ❌ Type 2 error

• ❌ Analytic error

Question 2

Which of the following are steps in experimental design? (I. Measurement II. Hypothesis III. Communicate)

• ❌ II. and III.

• ✅ All of these.

• ❌ I. and III.

• ❌ I. and II.

Question 3

Null hypothesis for fuel additive test?

• ❌ That the additive is too expensive.

• ❌ That the additive increases the fuel efficiency significantly.

• ❌ That the additive decreases fuel efficiency significantly.

• ✅ That the fuel additive does not affect the fuel efficiency significantly.

Question 4

Alpha = 0.05, P-value = 0.08. Conclusion?

• ❌ There is a significant difference. Fail to reject H0, accept H1.

• ✅ There is no significant difference. Fail to reject H0, reject H1.

• ❌ There is a significant difference. Reject H0, accept H1.

• ❌ There is no significant difference. Reject H0, reject H1.

Question 5

Repeated measures, A/B testing, and RCTs are studies of what type?

• ❌ Statistics

• ❌ Bias

• ❌ Observational

• ✅ Experimental

Question 6

“Assuming the data sample is large enough” is an example of what statistical assumption?

• ❌ Normality

• ✅ Required sample size

• ❌ Homogeneity of variance

• ❌ Linearity

Question 7

What is the alpha for a 96% confidence interval?

• ✅ 0.04

• ❌ 0.05

• ❌ 0.96

• ❌ 96%

Question 8

What is observational bias?

• ❌ When you can’t see what is happening.

• ❌ When analysts don’t observe cultural differences between themselves and the sample.

• ✅ That observing people can cause them to act in a manner inconsistent with their true actions.

• ❌ When you select a sample by observing the population incorrectly.

🧾 Summary Table