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Mock AP Exam 1 MCQ 2
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A survey was conducted in a large city to investigate public opinion on banning the use of trans fats in restaurant cooking. A random sample of 230 city residents with school-age children was selected, and another random sample of 341 city residents without school-age children was also selected. Of those with school-age children, 94 opposed the banning of trans fats, and of those without school-age children, 147 opposed the banning of trans fats. An appropriate hypothesis test was conducted to investigate whether there was a difference between the two groups of residents in their opposition to the banning of trans fats.
Mark for Review
Is there convincing statistical evidence of a difference between the two population proportions at the significance level of 0.05?
Yes, because the sample proportions are different.
Yes, because the probability of observing a difference at least as large as the sample difference is greater than 0.05.
Yes, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is less than 0.05.
No, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is greater than 0.05
No, because the probability of observing a difference at least as large as the sample difference is less than 0.05.
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