In: Statistics and Probability
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 | Food | Toys |
37 | 46 | 59 |
23 | 70 | 45 |
36 | 47 | 47 |
35 | 58 | 53 |
28 | 47 | 63 |
31 | 42 | 53 |
17 | 34 | 48 |
31 | 43 | 58 |
20 | 57 | 47 |
47 | 51 | |
44 | 51 | |
54 |
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.)
Solution-
ANOVA Table-
Source of variation | sum of squares | degree of freedom | Mean S. S | F Stat |
---|---|---|---|---|
Treatment | 3172.8 | 2 | 1586.4 | 26.92 |
Error | 1709.1 | 29 | 58.9 | |
Total | 4881.9 | 31 |
Calculation-