A study ofthe effect of television commercials on 12year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes Food Toys 52 68 26 31 15 41 23 41 4B 23 65 41 51 58 48 56 24 46 23 56 49 31 48 53 52 56 52 51 56 45 57 59 l a. Complete the ANOVA table. Use 0.02 significance level. [Round the SS and MS values 101 decimal place and F-value to 2 decimal places. Round the DF values to nearest whole number. Round pvalue to 3 decimal places.) Source 55 DF H5 F Valua Total b. Find the values of mean and standard deviation. (Round the mean and standard deviation values to 3 decimal places.) Level I Mean StDEV Clothes Food Toys c. Is there a difference in the mean attention span of the children for the various commercials? The hypothesis of identical means can denitely be {Click to select} v . There is (Clicktu select] v in the mean attention span. d. Are there significant differences between pairs of means? (Click to select} V