please answer theses question Compared to a confidence Interval With a 90 percen

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please answer theses question

Compared to a confidence Interval With a 90 percent confidence level, an Interval based on the same sample size with a 99 percent level of confidence: is wider. is narrower. has the same precision. would be narrower if the sample size is less than 30 and wider if the sample size Is at least 30. would be narrower If the sample size Is less than 100 and wider if the sample size is at least 100. It is estimated that 80% of Americans go out to eat at least once per week, with a margin of error of 0.04 and a 95% confidence level. A 95% confidence interval for the population proportion of Americans who go out to eat once per week or more is: (0.722,0.878) (0.798,0.802) (0.784,0.816) (0.771,0.829) (0.760,0.840) In a random sample of 600 registered voters, 45 percent said they vote Republican. The 95% confidence interval for proportion of all registered voters who vote Republican is, a) (0.401,0.499)(0.410,0.490)(0.421,0.479) (0.426,0.474)(0.428,0.472)

Explanation / Answer

12)c

13)a

14)d

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