A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. Clothes 34 Food Toys 38 64 30 34 44 51 39 35 42 48 28 47 63 31 17 31 20 42 53 34 46 43 56 47 47 51 44 51 54 Click here for the Excel Data File 1. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS values to 1 decimal place and F value to 2 decimal places. Leave no cells blank - be certain to enter "O" wherever required. Round the df values to nearest whole number.) Source df SS MS F P Factors Enor Total 2. Find the values of mean and standard deviation. (Round the mean and standard deviation values to 3 decimal places.) Level: Clothes N Mean StDev Food Toys 3. Is there a difference in the mean attention span of the children for the various commercials? The hypothesis of identical means can definitely be There is in the mean attention span. 4. Are there significant differences between pairs of means