I want to estimate the proportion of college professors who believe in aliens. How many college professors do I need to randomly sample in order to be 90% certain that my sample proportion is within 5 percentage points of being accurate?

MATLAB: An Introduction with Applications
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Please use the correct formula for the problem. If you could please show your work, so I can understand how it is done. 

I want to estimate the proportion of college professors who believe in aliens. How many college
professors do I need to randomly sample in order to be 90% certain that my sample proportion
is within 5 percentage points of being accurate?
Transcribed Image Text:I want to estimate the proportion of college professors who believe in aliens. How many college professors do I need to randomly sample in order to be 90% certain that my sample proportion is within 5 percentage points of being accurate?
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