When the variance of the mean value is smaller than the variance of individual values,________.

A) the p-value is equal to the Significance F
B) the data set contains an outlier
C) the Adjusted R Square is equal to 1
D) the prediction interval is wider than the confidence interval

When the variance of the mean value is smaller than the variance of individual values, it indicates that the mean provides a more precise estimate of the population parameter than individual observations do. This situation typically results in a narrower confidence interval for the mean estimate compared to the prediction interval for individual observations, as the prediction interval accounts for the additional variability of individual values around the mean.