Solution-Dialed telephone numbers at random

Dialed telephone numbers at random

Reference no: EM131167965

A November 2008 Gallup poll asked a sample ? of Americans 18 years or older whether they would like to "lose weight, stay the same, or gain weight". In all, 59% of the sample said they would like to lose weight. Gallup announced the polls margin of error for 95% confidence as +3(+3 is underlined) percentage points. Which of the following sources of error are included in the margin of error? -a different sample would likely produce different numbers -some people whose numbers were chosen never answered the phone in several calls -some people did not answer truthfully on the phone -the poll dialed telephone numbers at random and so missed all people without phones

Reference no: EM131167965

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Dialed telephone numbers at random

Reference no: EM131167965

Reference no: EM131167965

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