A Study Of The Effect Of Television Commercials On 12 Year Old Children Measured Their Attention Span In Seconds The C 1 (57.72 KiB) Viewed 24 times
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 44 27 22 46 Ho H₂ 35 28 31 17 31 20 49 37 56 47 42 34 43 57 47 44 54 Source of Variation Treatment Error Total Toys 61 2 64 57 48 Click here for the Excel Data File Required: a. What are the null and alternate hypotheses? 63 53 48 58 47 51 51 Answer is complete and correct. HClothes Food Toys Not all means are equal. b. Complete the ANOVA table. Use 0.05 significance level. (Round the SS and MS values to 1 decimal place, Fvalue, p-value, and F crit to 2 decimal places. Leave no cells blank- be certain to enter "0" wherever required. Round the df values to nearest whole number.) ♥ $$ 3.447.10 1,554.4 5,001.5 df 20 29 31 Answer is complete and correct. MS 1,723.5 53.6 F 32.15 p-value 0.00 F crit 3.3277 A Item Clothes Clothes Clothes Clothes Clothes Clothes Clothes Clothes Clothes Food Food Food Food Food Food Food Food Food Food Food Food Toys Toys Toys Toys Toys Toys Toys Toys Toys Toys Toys B Length 27 22 46 35 28 31 17 31 20 44 49 37 56 47 42 34 43 57 47 44 54 61 64 57 48 63 53 48 58 47 51 51
c. What is the test statistic? (Round your answer to 4 decimal places.) The test statistic is Answer P-value d. What is the p-value? (Round your answer to 4 decimal places.) complete and correct. There is Answer is complete and correct. 0.0000 f. Interpret the result. 32.1548 ✔ e. What is your decision regarding the null hypothesis? Answer is complete and correct. Reject Answer is complete and correct. in the mean attention span. a difference g. Compute the 95% confidence intervals that estimate the difference between each pair of means. (Negative amount should be Indicated by a minus sign. Round your answers to 2 decimal places.) The interval for the difference between Clothes and Food is from The interval for the difference between Clothes and Toys is from The interval for the difference between Food and Toys is from Answer not complete. (Smaller Mean-Larger Mean) to to to (Larger Mean to to Smaller Mean)
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