A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to inc

Question

A survey was given to a random sample of the residents of a town to determine whether they support a new plan to raise taxes in order to increase education spending. The survey reported a confidence interval that between 16.5% and 25.5% of the residents supports the plan. What is the margin of error on the survey? Do not write \pm± on the margin of error.

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Trung Dũng 1 month 2021-08-04T01:50:18+00:00 1 Answers 4 views 0

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    2021-08-04T01:51:44+00:00

    Answer:

    9

    Step-by-step explanation:

    The confidence interval is related to margin of error ; according to the relation :

    Confidence interval = mean ± margin of error

    Margin of Error = (upper boundary value – lower boundary value)

    Confidence interval = 16.5% and 25.5%

    Margin of Error = (25.5% – 16.5%)

    Margin of Error = ±9

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