Question: Which statement is true about confidence intervals? A researcher should always be concerned about both sides of a confidence interval. There is a close relationship

Which statement is true about confidence intervals? A researcher should always be concerned about both sides of a confidence interval. There is a close relationship between confidence intervals and p-values. Altering the sample size will not help to improve the accuracy of the confidence interval. The confidence interval must always be set at 90 percent or higher

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