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10 June, 04:12

A 95% confidence interval for the proportion of students achieving a reading achievement score that is above the standard set by the teachers for a population of third grade students is (0.43, 0.49).

The margin of error of this interval is:

Group of answer choices

0.05

0.03

0.06

None of the above

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Answers (1)
  1. 10 June, 05:23
    0
    0.03

    Explanation:

    First, you subtract the upper bound of the confidence interval by the lower bound of the confidence interval. Then, you divide that number by 2 to get the margin or error.

    In this case: (0.49 - 0.43) / 2 = 0.03
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