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Which of the following is/are true about confidence intervals (choose one or more) knowing the range of a parameter is more accurate than a point

Which of the following is/are true about confidence intervals (choose one or more)

knowing the range of a parameter is more accurate than a point estimate

confidence intervals are abbreviated CI

confidence interval of the mean = mean +/- a margin of error

when we calculate a 95% confidence interval there is statistical significance

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