Which of the following statements about confidence intervals is INCORRECT? If the confidence interval for H0: mu=0 contains 0, we would conclude there is no significant difference. If we keep the...

Which of the following statements about confidence intervals is INCORRECT?

		If the confidence interval for H0: mu=0 contains 0, we would conclude there is no significant difference.
		If we keep the confidence coefficient fixed, the confidence interval gets narrower as we increase the sample size.
		If the population standard deviation increases, the confidence interval decreases in width.
		A confidence interval for a mean always contains the sample mean.
		If we keep the sample size fixed, the confidence interval gets wider as we increase the confidence coefficient.

Jun 03, 2022

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