Hi, can someone help me with these questions?

StatChapter08 Part 2: Problem 11 Previous Problem Problem List Next Problem (1 point) Euniqua plans to find a(n) 88% confidence interval for the average IQ of students at her school, assuming the standard deviation of IQ scores for students at the school is 15 points. Part 1: What is the critical value for such a confidence interval? Give your answer to exactly four decimal places. 1.5548 Part 2: If Euniqua uses a Simple Random Sample, what is the minimum sample size required to get a margin of error of at most 2 points?StatChapter08 Part 2: Problem 12 (1 point) Prior to an election, various polling companies report the percentage of likely voters who support a particular candidate, often with a 3% margin of error. What does a 3% margin of error actually mean? There may be more than one correct answer; you must check all correct answers in order to get credit for this problem. A. At most 3% of those in the sample are expected to vote differently than they claim. B. We are certain that the actual percentage of likely voters who support the candidate is within 3% of the reported percentage. 0. It is probably true that the actual percentage of likely voters who support the candidate is within 3% of the reported percentage. D. It is probably true that the reported percentage is with 3% of the actual percentage of likely voters who support the candidate. E. Less than 3% of all likely voters were included in the sample. F. We are certain that that the reported percentage is with 3% of the actual percentage of likely voters who support the candidate. G. None of the above