Arden and Plomin (2006) published a study reporting that IQscores for boys are more variable than IQ scores for girls. Aresearcher would like to know whether this same phenomenon appliesto other measures of cognitive ability. A standard cognitive skillstest is given to a sample of n = 15 adolescent boys and a sample ofn = 15 adolescent girls, and resulted in the following scores. BoysGirls 9 5 3 9 7 6 5 4 6 7 5 2 4 8 8 6 4 7 6 8 7 4 9 7 3 5 7 8 6 51) Calculate the mean and the standard deviation for each group.Boys: Girls: 2) Based on the means and the standard deviations,describe the differences in intelligence scores for boys and girls.A- The girl's mean intelligence score is HIGHER THAN, LOWER THAN,OR THE SAME AS that the boy's scores. B- The boys’ scores are ASVARIABLE AS, LESS VARIABLE THAN, OR MORE VARIABLE THAN the girls’scores?
