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A study of the effect of television commercials on 12yearold children measured their attention span. in seconds. The commercials were for clothes. food. and toys. Clothes Food Toys 3? 46 59 23 '?0 45 36 4'? 4? 35 58 53 28 4'? 63 31 42 53 l? 34 48 31 43 58 20 5'? 4? 4'? 51 44 51 54 1. Complete the ANOVA table. Use 0.05 signicance level. [Round the SS and MS values to 1 decimal place and Fvalue to 2 decimal places. Leave no cells blank be certain to enter "0" wherever required. Round the df values to nearest whole number.) 2. Find the values of mean and standard deviation. [Round the mean and standard deviation values to 3 decimal places.)