Question

Anova 7. Several magazines were grouped into three categories based on what level of education of their readers the magazines are geared towards: high, medium, or low level. Then random samples of the magazines were selected to determine the number of three-plus-syllable words were in the advertising copy, and the data is in the table. ("Magazine ads readability," 2013). Is there enough evidence to show that the mean number of three-plus-syllable words in advertising copy is different for at least two of the education levels? Test at the 5% level. High Education Medium Education Low Education 34 13 21 22 7. 37 25 31 10 8. 24 39 9. 10 8. 17 18 32 29 17 26 9. a. State the null and alternative hypothesis. 6 points 6 points 6 points b. Give the p-value. C. Give a conclusion for the hypothesis test.

Answer 1

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Console -/8 > data=read.csv(choose.files()) > data$c=as.factor (data$c), > r=aov(y-c, data=data) > summary(r) Pr (>F) 11.66 0.000148 e** Df sum Sg Mean Sq F value 859.2 73.7 1718 2432 Residuals 33 signif. codes: > TukeyHSD(r) Tukey multiple comparisons of means 95% family-wise confidence level o ***** o,001 ** 0.01 *' 0.05 0.1 ' 1 data) Fit: aov(for mula y ~ C, data $C p adj 2-1 -12.41667 -21. 01630 -3.817033 0.0033658 3-1 -16.16667 -24. 76630 -7.567033 0.0001662 4.849633 0.5390331 diff Twr upr -3.75000 -12.34963 3-2
Result is prove using r programming