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Author Question: Name two different situations that can result in a confidence interval for a proportion falling into ... (Read 63 times)

rosent76

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on: Jul 24, 2018
Name two different situations that can result in a confidence interval for a proportion falling into negative numbers for some of its values (which does not make sense). Give an example of each.

Question 2

Give an example of a confidence interval for a proportion with a margin of error of 5 that falls below zero for some of its values.


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johnharpe

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Reply #1 on: Jul 24, 2018
Answer to Question 1

1) A LARGE MARGIN OF ERROR CAUSED BY A SMALL SAMPLE SIZE (FOR EXAMPLE, 10 PLUS OR MINUS 20); OR 2) A SMALL SAMPLE PROPORTION AND A MARGIN OF ERROR THAT'S LARGER THAN THE SAMPLE PROPORTION (FOR EXAMPLE, 2 PLUS OR MINUS 5).

Answer to Question 2

ANY ANSWER THAT CONTAINS NEGATIVE NUMBERS AS PART OF THE INTERVAL AND HAS WIDTH OF 10, SUCH AS 2 PLUS OR MINUS 5, WHICH WOULD BE 3 TO 7.


rosent76

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Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

coreycathey

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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