A study of the effect of television commercials on 12-year-old
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 |
23 | 32 | 57 |
24 | 44 | 47 |
29 | 40 | 43 |
35 | 49 | 52 |
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. Leave no cells blank – be certain to enter “0” wherever required.)
- Find the values of mean and standard deviation. (Round the mean and standard deviation values to 2 decimal places.)
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