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  3. directions: show all work! please round any answer

Directions: Show ALL work! Please round any answer to the nearest hundredth, unless you can get...

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Basic Math

Directions: Show ALL work! Please round any answer to thenearest hundredth, unless you can get an exact amount. If an answerasks to explain, please make sure to give a valid and completeexplanation. For your hypothesis tests, make sure you give acomplete interpretation.

2. In a survey of 500 randomly selected U.S. teens, it was foundthat 37% of them have been in the car while a person under theinfluence is driving.


a) Construct a 90% confidence interval for the populationproportion of U.S. teens who have been in the car while a personunder the influence is driving.

b) Using the information from part a, determine the minimumsample size required to be 95% confident that the estimate isaccurate within 3% of the population proportion.

Answer & Explanation Solved by verified expert
4.5 Ratings (790 Votes)
Solution Given thata n 500 37 0371 1 037 063At 90 confidence level 1 90 1    See Answer
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