In: Statistics and Probability
In 2010, a survey of 2000 homes in a region found that 500 had overestimated market values. Suppose you want to estimate p, the true proportion of homes in this region with market values that are overestimated.
The point estimate is 0.25
1) Find a 90% confidence interval for p.
2) Give a practical interpretation of the confidence interval
3) Suppose a researcher claims that p equals= 0.18. Is the claim believable? Explain.