Q 1.7. - Elementary Statistics

Question

In Exercises 1.7-1.12, classify each of the studies as either descriptive or inferential. Explain your answers.

TV Viewing Times. Data from a sample of Americans yielded the following estimates of average TV viewing time per month for all Americans 2 years old and older. The times are in hours and minutes; Q1 stands for first quarter. [SOURCE: The Cross-Platform Report, Quarter 1, 2011. Published by The Nielsen Company, © 2011.]

Step-by-Step Solution

Answer

The given study involves inferential. 

Step 1. Given information.

The given statement is:

Data from a sample of Americans yielded the following estimates of average TV viewing time per month for all Americans 2 years old and older. The times are in hours and minutes.

Step 2. Classify the studies as either descriptive or inferential.

In the given study, the average TV viewing time per month of all Americans 2 years old and older is estimated.

Furthermore, the average is based on a representative sample of Americans.

As a result, a sample of the provided population is used to estimate the population of all Americans

Therefore, the given study involves inferential statistics.