THE GALLUP POLL INTERVIEWED 1007 RANDOMLY SELECTED U.S. ADULTS AGED 18 AND OLDER

Question

THE GALLUP POLL INTERVIEWED 1007 RANDOMLY SELECTED U.S. ADULTS AGED 18 AND OLDER, MARCH 23-25, 2007. GALLUP REPORTS THAT WHEN ASKED WHEN (IF EVER) THE EFFECTS OF GLOBAL WARMING WILL BEGIN TO HAPPEN, 60% OF RESPONDENTS SAID THE EFFECTS HAD ALREADY BEGUN. ONLY 11% THOUGHT THAT THEY WOULD NEVER HAPPEN.

IN THIS PROBLEM IDENTIFY THE FOLLOWING

•A. THE POPULATION

•B. THE POPULATION PARAMETER OF INTEREST

•C. THE SAMPLING FRAME

•D. THE SAMPLE

•E. THE SAMPLING METHOD, INCLUDING WHETHER OR NOT RANDOMIZATION WAS EMPLOYED

•F. ANY POTENTIAL SOURCES OF BIAS YOU CAN DETECT AND ANY PROBLEMS YOU SEE IN GENERALIZING TO THE POPULATION OF INTEREST.

Explanation / Answer

A. US Adults aged 18 and older

B. Response of adults on global warming

C. Sample of people aged 18 and above

D. 1007 US Adults

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