Television Networks Frequently Run Public Opinion Polls on Issues of Concern.Recently

question 7

Multiple Choice

Television networks frequently run public opinion polls on issues of concern.Recently one network conducted a scientific poll asking a question concerning the approval rating of the way President Obama was handling the Iraq War.At about the same time a second network ran an online poll using a very similar question.The results of the two polls are summarized in the following table. We would like to test to see if the two polls are consistent with respect to the proportion who approve of President Obama's handling of the war (i.e. ,H₀: ) . A statistic was calculated under the null hypothesis,which has the value 22.28.If the respondents in both polls can be considered to come from random samples,what is this statistic?

• A)It is approximately a t with 1 degree of freedom.
• B)It is a statistic with approximately a chi-square distribution with 3 degrees of freedom.
• C)It is a statistic with an approximate chi-square distribution with 1 degree of freedom.
• D)It is a z statistic.
• E)It is none of the above.

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Definitions:

Genital Stage

The final stage of Freud's psychosexual development, beginning in puberty, where sexual energies are focused on the genitals and mature sexual relationships are formed.

Sexual Energy

An abstract concept often associated with the driving force behind human sexual behavior as well as creativity, according to certain psychological and philosophical theories.

Freud's Ideas

Theories proposed by Sigmund Freud that focus on unconscious motives and conflicts, primarily through the lens of psychoanalysis.

Determinist

An advocate or believer in determinism, the philosophical concept that all events, including moral choices, are ultimately determined by causes external to the will.