Bold (a )(a) In general, the variability among the sample means is called the -sample variability and the variability of each sample is called the -sample variability. Bold (b )(b) The analysis of variances F-test statistic is given by what? (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.) Bold (a )(a) In general, the variability among the sample means is called the between -sample variability and the variability of each sample is called the within -sample variability. Bold (b )(b) Choose the correct answer below.