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Can someone "dumb" this question down for me? Can you explain every step of how you...

Can someone "dumb" this question down for me? Can you explain every step of how you got your answer? I need to see all work and understand it.

For each of the following three sample sizes, con- struct the 95% confidence interval. Use a sample proportion of 0.40 throughout. What happens to interval width as sample size increases? Why?

Ps = 0.40
Sample A: N = 100
Sample B: N = 1000
Sample C: N = 10,000

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