Inference from Sample Statistics and Margin of Error

SAT Math· difficulty 4/5

A 95% CI for the mean weight of cereal boxes is (495,505)(495, 505) grams. The point estimate (sample mean) is:

  • A

    495 g

  • B

    490 g

  • C

    505 g

  • D

    500 g

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Explanation

The point estimate is the center of the CI: (495+505)/2=500(495 + 505)/2 = 500 grams.

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