A study of the effect of television commercials on 12-year-old children measured

Question

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.

Complete the ANOVA table. Use .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 "0" wherever required. Round the DF values to nearest whole number.)

Clothes Food Toys 26 45 60 21 48 51 43 43 43 35 53 54 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54

Explanation / Answer

Sol)

From Excel

ANOVA Source of Variation SS df MS F P-value F crit Between Groups 3182.038 2 1591.0 35.56 1.57E-08 3.327654 Within Groups 1297.462 29 44.7 Total 4479.5 31

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