A study of the effect of television commercials on 12-year-old children measured
ID: 3392215 • Letter: A
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.
(1) 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.) Source SS DF MS F P Factors Error Total
(2) Find the values of mean and standard deviation. (Round the mean and standard deviation values to 2 decimal places.) Level N Mean StDev Clothes Food Toys
(3) Is there a difference in the mean attention span of the children for the various commercials? The hypothesis of identical means can definitely be . 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.
Clothes Food Toys 32 48 52 26 24 55 37 33 38 35 58 59 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54Explanation / Answer
A study of the effect of television commercials on 12-year-old children measured
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