28. Quiz: Descriptive vs. Inferential (Udacity Students)

QUIZ QUESTION::

Identify the population, parameter, sample, and statistic for the below scenario:

Consider we are interested in the average number of hours slept by all Udacity students (100,000 students). I send an email to all Udacity students, but I only receive 5,000 response emails. The average amount of sleep of those that responded was 6.8 hours of sleep.

ANSWER CHOICES:

We cannot know for sure.

We cannot know for sure.

5,000 Udacity students

6.8 hours of sleep

6.8 hours of sleep

All Udacity students

Term	Description
Population
Parameter
Sample
Statistic

SOLUTION:

Term	Description
Parameter	We cannot know for sure.
Parameter	We cannot know for sure.
Sample	5,000 Udacity students
Statistic	6.8 hours of sleep
Statistic	6.8 hours of sleep
Population	All Udacity students