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stat question I need fully complete in 20 minuets if possible

I need an explanation for this Political Science question to help me study.

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Answer the question in this section and show all your work. The more work you show in how you arrived at an answer, the more able I am to give partial credit for incorrect answers. You can upload your response in a word file. If you elect to take an image of a written response, please make sure the image fills the page and the writing is legible.

A news organization commissioned a poll. In this poll they asked the following question:

“Do you approve or disapprove of the job Donald Trump is doing as President?”

In a sample of 1200 respondents they found that 39% (or .39) of respondents approved. With this information answer the following questions (Show your work):

  1. What is the sample standard deviation?
  2. What is the standard error of the mean?
  3. What is the 95% confidence interval?
  4. What inference can you make from this (interpret the confidence interval)?
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