Researchers compare the mean commercial recall scores of viewers of three TV pro
ID: 3043189 • Letter: R
Question
Researchers compare the mean commercial recall scores of viewers of three TV programs, one with a violent content code (v) rating, one with a sex content code (s) rating, and one is a neutral TV program. The researchers conducted multiple comparisons of the three mean recall scores using Tukey's method. Complete parts a through d.
Comparison Tukey Confidence Interval
s-v (-2.696, 4.395)
n-v (0.726, 1.359)
n-s (1.088, 2.386)
a. How many pairwise comparisons are made in this study?
b. Determine the correct interpretation of the confidence interval for the comparison of the s and v groups. There is evidence
no evidence
to indicate a difference in the mean recall scores between the sexual and violent content programs because 0 in this interval.
c. Determine the correct interpretation of the confidence interval for the comparison of the n and v groups. There is no evidence
evidence
to indicate a difference in the mean recall scores between the neutral and violent content programs because 0 is not is in this interval.
Determine the correct interpretation of the confidence interval for the comparison of the n and s groups. There is evidence
no evidence
to indicate a difference in the mean recall scores between the neutral and sexual content programs because 0 is not is in this interval.
Determine which of the groups has the largest mean recall score.
A. Neutral content
B. Violent content
C. None of the groups have a significantly larger mean recall score.
D. Sexual content
d. The researchers conclude that "memory for [television] commercials is impaired after watching violent or sexual programming." Do you agree?
No or Yes , because the mean recall score for those watching the neutral program was
not significantly different
from significantly smaller than
significantly larger than
the mean recall scores of the other two groups.
Explanation / Answer
Answer:
Researchers compare the mean commercial recall scores of viewers of three TV programs, one with a violent content code (v) rating, one with a sex content code (s) rating, and one is a neutral TV program. The researchers conducted multiple comparisons of the three mean recall scores using Tukey's method. Complete parts a through d.
Comparison Tukey Confidence Interval
s-v (-2.696, 4.395)
n-v (0.726, 1.359)
n-s (1.088, 2.386)
3
b. Determine the correct interpretation of the confidence interval for the comparison of the s and v groups. There is no evidence to indicate a difference in the mean recall scores between the sexual and violent content programs because 0 is in this interval.
c. Determine the correct interpretation of the confidence interval for the comparison of the n and v groups. There is evidence to indicate a difference in the mean recall scores between the neutral and violent content programs because 0 is not is in this interval.
Determine the correct interpretation of the confidence interval for the comparison of the n and s groups. There is evidence to indicate a difference in the mean recall scores between the neutral and sexual content programs because 0 is not is in this interval.
Determine which of the groups has the largest mean recall score.
Answer: A. Neutral content
B. Violent content
C. None of the groups have a significantly larger mean recall score.
D. Sexual content
d. The researchers conclude that "memory for [television] commercials is impaired after watching violent or sexual programming." Do you agree?
No or Yes , because the mean recall score for those watching the neutral program was
not significantly different
from significantly smaller than
Answer: significantly larger than
the mean recall scores of the other two groups.
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