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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.

 

ClothesFoodToys
264560
214851
434343
355354
284763
314253
173448
314358
205747
 4751
 4451
 

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.)


  SourceDFSSMSFP
  Factors.
  There is  in the mean attention span.

(4)Are there significant differences between pairs of means?

 Clothes have a mean attention span of at least ten minutes 

 the other groups.

 

 

54

 

 

 

 

 

 

 

 

 

 

 

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