Question

You want to take a poll of college students at campuses across the country on who they voted for in the Presidential election. In order to have 99% confidence with a margin of error of 3 percentage points, how large a sample do you need to take? Round your answer to the next whole number.

Name: you want to take a poll of college students at campuses across the country on who they voted for in the presidential election in order to have 99 confidence with a margin of error of 3 perce 39545
Uploaded: 2023-05-17T09:22:00-08:00
Duration: 1 min 18 s
Channel: Qudsiya Anis
Description: you want to take a poll of college students at campuses across the country on who they voted for in the presidential election in order to have 99 confidence with a margin of error of 3 perce 39545

          You want to take a poll of college students at campuses across the country on who they voted for in the Presidential election. In order to have 99% confidence with a margin of error of 3 percentage points, how large a sample do you need to take? Round your answer to the next whole number.

Added by Jessica K.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Qudsiya Anis

05/17/2023

Step 1

To find the z-score for a 99% confidence level, we look it up in a standard normal distribution table or use a calculator. The z-score for 99% confidence is approximately 2.576. Show more…

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You want to take a poll of college students at campuses across the country on who they voted for in the Presidential election. In order to have 99% confidence with a margin of error of 3 percentage points, how large a sample do you need to take? Round your answer to the next whole number.