You are studying the effectiveness of an advertisement designed to prevent teenagers from drinking. The advertisement is shown to 6teenagers. Their attitude toward drinking is assessed at three times: prior to showing the ad, immediately following the ad, and twomonths after the ad. Those data are presented below, Time of assessment Subject Before Immediately After Two Months Later 1 12 6 9 2 8 3 7 3 16 15 14 4 4 3 3 5 9 4 6 6 13 8 10 Source of Variation Sums of Squares df Mean Squares F Factors or Treatment *** *** *** *** Error *** *** *** Total *** *** (Suppose that assumptions required to perform a one-way analysis of variance have been tested positively.) Using the 1% significance level,test the hypothesis that the attitude towards drinking for teenagers before, immediately after and two months after the ad is the same.1. Define the null and alternative hypothesis for the ANOVA model.b. Calculate the missing values for the ANOVA table above.c. What is your conclusion for the ANOVA results?

You are studying the effectiveness of an advertisement designed to prevent teenagers from drinking. The advertisement is shown to 6 teenagers. Their attitude toward drinking is assessed at three...

You are studying the effectiveness of an advertisement designed to prevent teenagers from drinking. The advertisement is shown to 6
teenagers. Their attitude toward drinking is assessed at three times: prior to showing the ad, immediately following the ad, and two
months after the ad. Those data are presented below,

Time of assessment
Subject	Before	Immediately After	Two Months Later
1	12	6	9
2	8	3	7
3	16	15	14
4	4	3	3
5	9	4	6
6	13	8	10

Source of Variation	Sums of Squares	df	Mean Squares	F
Factors or Treatment	***	***	***	***
Error	***	***	***
Total	***	***

(Suppose that assumptions required to perform a one-way analysis of variance have been tested positively.) Using the 1% significance level,
test the hypothesis that the attitude towards drinking for teenagers before, immediately after and two months after the ad is the same.

1. Define the null and alternative hypothesis for the ANOVA model.
b. Calculate the missing values for the ANOVA table above.
c. What is your conclusion for the ANOVA results?

Jun 09, 2022

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