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Use the following information to answer the next five exercises: A poll of 1,200 voters asked...

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Statistics

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%?

Answer & Explanation Solved by verified expert
4.4 Ratings (652 Votes)
SolutionGiven 1 Let X Number of voters answered for most significant issuewas in the upcoming election is the economyamong 1200 voters2 p    See Answer
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