Two opposing opinions were shown to a random sample of 2,150
buyers of a particular political news app in the United States. The
opinions, shown in a random order to each buyer, were as
follows:
Opinion A: The issue of equal pay is more important than increasing
the minimum wage.
Opinion B: Increasing the minimum wage is more important than the
issue of equal pay.
Buyers were to choose the opinion that most closely reflected their
own. If they felt neutral on the topics, they were to choose a
third option of "Neutral."
The outcomes were as follows:
50% chose Opinion A, 42% chose Opinion B, and 8% chose
"Neutral."
The number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B are both greater than 10. Why must this inference condition be met? (5 points)
Ans
The conditions we need for inference on one proportion are:
Independent: Individual observations need to be independent. This condition is also met
This is why we need the number of buyers that chose Opinion B and the number of buyers that did not choose Opinion B are both greater than 10 so that we can say the sampling distribution is normal
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