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A biologist reports a confidence interval of (3, 2, 3, 8) when estimating the mean height in (in centimeters) of a sample of seedlings. The estimated margin of error is __________ , The sample mean is ________.

  • statistics -

    Add the two values together, then divide by 2 to get the mean:

    3.2 + 3.8 = 7.0

    Divide 7.0 by 2 = 3.5 = mean

    Margin of error = .3

    3.5 - .3 = 3.2

    3.5 + .3 = 3.8

    I hope this will help you with other problems of this type.

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