True. The confidence interval for the mean will be wider for 95% confidence than for 90% confidence, assuming all other factors are equal (such as sample size and variability). This is because a higher confidence level requires a larger margin of error to ensure that the interval captures the true population mean with the desired level of certainty.
True or False: The confidence interval for the mean will be wider for 95% confidence than for 90% confidence when all the other things being equal.
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