35. Notebook + Quiz: Multiple Tests

Code

If you need a code on the https://github.com/udacity.

Quiz 1: What does a p-value signify in this example?

SOLUTION: The probability of us observing the facts about an individual's case that are in favor of them being guilty, assuming they are truly innocent.

QUIZ QUESTION::

Quiz 2: Match the description to each correct value for this case.

ANSWER CHOICES:



Value

Description

Type I Error

Type II Error

p-value

alpha

SOLUTION:

Value

Description

p-value

alpha

Type I Error

Type II Error

QUIZ QUESTION::

Quiz 3:

ANSWER CHOICES:



Description

Value

The new Type I Error rate after the Bonferroni correction.

The proportion of p-values less than the Bonferroni corrected Type I Error rate.

The proportion of Type I Errors committed if the Bonferroni correction is used.

The proportion of Type I Errors committed if the Bonferroni correction isn't used.

SOLUTION:

Description

Value

The proportion of p-values less than the Bonferroni corrected Type I Error rate.

The proportion of Type I Errors committed if the Bonferroni correction is used.

The proportion of p-values less than the Bonferroni corrected Type I Error rate.

The proportion of Type I Errors committed if the Bonferroni correction is used.

The new Type I Error rate after the Bonferroni correction.

The proportion of Type I Errors committed if the Bonferroni correction isn't used.

Quiz 4: Why is this not how multiple comparison tests work in practice?

SOLUTION: Hypothesis testing is used on parameters. This is looking at individuals in a population, not aggregates.