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Do answer the following by filling in the boxes below the question with the appropriate numerical...

Do answer the following by filling in the boxes below the question with the appropriate numerical value.

And Interval EstimateAmong a recent random sample of 400 California citizens aged 18—24, 168 were registered to vote. Estimate a 95% confidence interval for the proportion of that age group that are registered to vote in the upcoming election.

What is your sample proportion (p)?

What z score will you use?

Your standard error =

Your UCL =

Your LCL =

Based on your interval above, can you say that the proportion of 18—24 year olds who are registered has increased from the 40% who were registered for the 2016 Presidential election?

YES☐

NO☐

Explain why by referring to the numbers in your interval.

Math   Statistics-And-Probability   
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