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The news reports that a politician is polling at 55% of the vote versus their opponent...

The news reports that a politician is polling at 55% of the vote versus their opponent who is polling at 45%. Can you tell the confidence level from the information given? If so, what is it? Can you tell the margin of error? If so, what is it?

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Answer #1

Questions asked:

QUESTION 1:

Can you tell the confidence level from the information given?

ANSWER : No.

EXPLANATION: Confidence level is the percentage of all possible samples that can be expected to include the true population parameter. It is decided by the investigator, most commonly 95%, but any level between 0 % to 100%.

QUESTION 2:

Can you tell me the margin of error?

ANSWER : No

EXPLANATION:

Margin of Error = Critical Value X Standard Error

But, since both Critical value and Standard Error are not known, we cannot calculate margin of error.

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