Use the following information to answer the next fiveexercises: A poll of 1,200 voters asked what the mostsignificant issue was in the upcoming election. Sixty-five percentanswered the economy. We are interested in the populationproportion of voters who feel the economy is the most important.Using Excel and functions. Don't forget to use this formulasqrt(p'*(1-p')/n) =
1. Define the random variable X in words.
2. Define the random variable P′ in words.
3. Which distribution should you use for this problem?
4. Construct a 90% confidence interval, and state the confidenceinterval and the error bound.
5. What would happen to the confidence interval if the level ofconfidence were 95%?
