Help me answer the following questions as do not understand anything from it

The Assignment:

Answer the questions below.

1.Identifying Data Sets in ArticlesFind a newspaper or magazine article that describes a survey.

(a)Identify the sample used in the survey.

(b)What is the sample's population?

(c)Make an inference based on the results of the survey.

2.Sleep DeprivationIn a recent study, volunteers who had 8 hours of sleep were three times more likely to answer questions correctly on a math test than were sleep-deprived participants.(Source: CBS News)

(a)Identify the sample used in the study.

(b)What is the sample's population?

(c)Which part of the study represents the descriptive branch of statistics?

(d)Make an inference based on the results of the study.

Rating Television Shows in the United States:

The Nielsen Company has been rating television programs for more than 60 years. Nielsen uses several sampling procedures, but its main one is to track the viewing patterns of 20,000 households. These contain more than 45,000 people and are chosen to form a cross section of the overall population. The households represent various locations, ethnic groups, and income brackets. The data gathered from the Nielsen sample of 20,000 households are used to draw inferences about the population of all households in the United States.

TV programs viewed by all households in the United States (114.5 million households) TV programs viewed by Nielsen sample (20,000 households)Top-Ranked Programs in Overall Viewing for the Week of 11/23/09-11/29/09 Rank Rank Last Week Program Name Network Day, Time Rating Share Audience Dancing with the Stars ABC Mon., 8:00 P.M. 12.9 19 20,411,000 NCIS CBS Tues., 8:00 P.M. 12.3 20 20,348,000 4 Dancing with the Stars Results ABC Tues., 9:00 P.M. 12.0 20 19,294,000 NBC Sunday Night Football NBC Sun., 8:15 P.M. 11.5 18 19,210,000 NCIS: Los Angeles CBS Tues., 9:00 P.M. 10.4 16 17,221,000 60 Minutes CBS Sun., 7:00 P.M. 9.0 14 14,377,000 15 The Big Bang Theory CBS Mon., 9:30 P.M. 8.4 13 14,129,000 16 Sunday Night NFL Pre-Kick NBC Sun., 8:00 P.M. 8.4 13 13,927,000 12 Two and a Half Men CBS Mon., 9:00 P.M. 8.3 12 13,877.000 10 11 Criminal Minds CBS Wed., 9:00 P.M. 8.2 14 13,605,000 Copyrighted information of The Nielsen Company, licensed for use herein