Question: 15. If based on a sample of size 400, a political candidate found that 240 people would vote for him in a twoperson race, what

15. If based on a sample of size 400, a political candidate found that 240 people would vote for him in a twoperson race, what is the 90% confidence interval for his proportion of votes? Can he be reasonably certain of victory? Find a 90% confidence interval and explain.

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