2. A November 2010 Gallup Poll found that 48% of American adults believe that it is the responsibility of the federal government to make sure that all Americans have health care coverage. You wonder if the percentage has changed. How many adult Americans should you survey if you want to be 99% confident of the current percentage to within 2 percentage points (if you use 48% as your best estimate of p).

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A November 2010 Gallup Poll found that 48% of American adults believe that it is the responsibility of the
federal government to make sure that all Americans have health care coverage. You wonder if the percentage has
changed. How many adult Americans should you survey if you want to be 99% confident of the current percentage to
within 2 percentage points (if you use 48% as your best estimate of p).
Transcribed Image Text:2. A November 2010 Gallup Poll found that 48% of American adults believe that it is the responsibility of the federal government to make sure that all Americans have health care coverage. You wonder if the percentage has changed. How many adult Americans should you survey if you want to be 99% confident of the current percentage to within 2 percentage points (if you use 48% as your best estimate of p).
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