10. Which of the following statements is false?

The width of a confidence interval estimate of the population mean narrows when the value of the sample mean increases.

The width of a confidence interval estimate of the population mean narrows when the sample size increases.

The width of a confidence interval estimate of the population mean widens when the confidence level increases.

Both "The width of a confidence interval estimate of the population mean narrows when the sample size increases" and "The width of a confidence interval estimate of the population mean widens when the confidence level increases."

None of these

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1. The width of a confidence interval estimate of the population mean narrows when the value of the sample mean increases. - False. Width of confidence interval remains the same and is not affected by change in mean 2. The width of a confidence interval estimate of the population mean narrows when the sample size increases - True 3. The width of a confidence interval estimate of the population mean widens when the confidence level increases - True   ...