Math Problem Statement
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 28 38 53 16 41 44 51 42 48 35 52 56 28 47 63 31 42 53 17 34 48 31 43 58 20 57 47 47 51 44 51 54 What is the test statistic? (Round your answer to 4 decimal places.)
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Analysis of Variance (ANOVA)
Hypothesis Testing
Formulas
Mean Square Between (MSB) = SSB / (k - 1)
Mean Square Within (MSW) = SSW / (N - k)
F-statistic = MSB / MSW
Theorems
One-Way ANOVA
Suitable Grade Level
College-level Statistics
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