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A survey on 1512 high school senfors who took the SAT and who completed an optional web survey between April 25 and April 30, 2007 shows that 55% of high school seniors are fairly certain that they will participate in a study abroad program in college. a) Is this sample a representative sample from the population of all high school seniors in the US? ONo. The sample only represents students who took the SAT, and this was also an online survey, so only students who had internet access could complete it. O No. The sample is not large enough to be representative. Yes. Each member of the population has an equal probability to be selected. Yes. The sample was obtained through randomization. b) Let's assume the conditions for inference are met (even if your answer to part A shows otherwise). Construct a 90% confidence interval for the proportion of high school seniors (of those who took the SAT) who are fairly certain they will participate in a study abroad program in college. Round your answer to 4 decimal places. Lower bound: Upper bound:

A survey on 1512 high school senfors who took the SAT and who completed an optional web survey between April 25 and April 30, 2007 shows that 55% of high school seniors are fairly certain that they will participate in a study abroad program in college. a) Is this sample a representative sample from the population of all high school seniors in the US? ONo. The sample only represents students who took the SAT, and this was also an online survey, so only students who had internet access could complete it. O No. The sample is not large enough to be representative. Yes. Each member of the population has an equal probability to be selected. Yes. The sample was obtained through randomization. b) Let's assume the conditions for inference are met (even if your answer to part A shows otherwise). Construct a 90% confidence interval for the proportion of high school seniors (of those who took the SAT) who are fairly certain they will participate in a study abroad program in college. Round your answer to 4 decimal places. Lower bound: Upper bound:

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A survey on 1512 high school seniors who took the SAT and who completed an optional web survey between April 25 and April 30, 2007 shows that 55% of high school seniors are fairly certain that they will participate in a study abroad program in college. a) Is this sample a representative sample from the population of all high school seniors in the US? O No. The sample only represents students who took the SAT, and this was also an online survey, so only students who had internet access could complete it. ONo. The sample is not large enough to be representative. Yes. Each member of the population has an equal probability to be selected. Yes. The sample was obtained through randomization. b) Let's assume the conditions for inference are met (even if your answer to part A shows otherwise). Construct a 90% confidence interval for the proportion of high school seniors (of those who took the SAT) who are fairly certain they will participate in a study abroad program in college. Round your answer to 4 decimal places. Lower bound: Upper bound:
Transcribed Image Text:A survey on 1512 high school seniors who took the SAT and who completed an optional web survey between April 25 and April 30, 2007 shows that 55% of high school seniors are fairly certain that they will participate in a study abroad program in college. a) Is this sample a representative sample from the population of all high school seniors in the US? O No. The sample only represents students who took the SAT, and this was also an online survey, so only students who had internet access could complete it. ONo. The sample is not large enough to be representative. Yes. Each member of the population has an equal probability to be selected. Yes. The sample was obtained through randomization. b) Let's assume the conditions for inference are met (even if your answer to part A shows otherwise). Construct a 90% confidence interval for the proportion of high school seniors (of those who took the SAT) who are fairly certain they will participate in a study abroad program in college. Round your answer to 4 decimal places. Lower bound: Upper bound:
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