SENSAT
87.215
1
87.215
.714
.400
14164.751
116
122.110
14251.966
117
Between Groups
Within Groups
Total
Sum of
Squares
df
Mean Square
F
Sig.
ANOVA
SENSAT
564.773
1
564.773
4.786
.031
13687.193
116
117.993
14251.966
117
Between Groups
Within Groups
Total
Sum of
Squares
df
Mean Square
F
Sig.
Descriptives
SENSAT
70
73.17
11.11
1.33
70.52
75.82
49
99
48
77.63
10.49
1.51
74.58
80.67
57
103
118
74.98
11.04
1.02
72.97
77.00
49
103
Nondrinker
Coffee Drinker
Total
N
Mean
Std. Deviation
Std. Error
Lower Bound
Upper Bound
95% Confidence Interval for
Mean
Minimum
Maximum
STAS2126 Assignment#3 (Summer 2008) SHOW YOUR WORK
DUE BEFORE LAB SESSION ON SEPT 23/24/25. Submit assignment to Digital Dropbox in Blackboard.
Research Question:
Do coffee drinkers have higher sensation seeking scores than nondrinkers?
1a
Given the above research question, what would be the null hypothesis (you may have to
consult course notes…use null hypothesis as the search term)
There is no difference between the sensation seeking scores of coffee drinkers and
nondrinkers
1b
Check the ANOVA table below …what is the Sig level or p value (these two terms mean
exactly the same thing and I will use them interchangeably)? Is it statistically significant?
Sig. = p value = .031…YES statistically significant
because it is LESS than .05
1c
According to the descriptives table, how many of the study participants were noncoffee drinkers?
70
1d
Look at the descriptives table and the ANOVA summary table. What can we conclude from these results about
sensation seeking scores for coffee drinkers and nondrinkers? (refer to the means in your
answer and also statistical
significance)
Sig. less than .05…therefore we can say that coffee drinkers have significantly higher sensation seeking scores
(77.63) than nondrinkers (73.17)
2a
For the results shown BELOW, what is the mean sensation seeking score for TEA
drinkers (TD) and non drinkers (ND)?
TD= 73.8
ND=75.61
2b
Check the ANOVA table below…what is the Sig level or p value? Is it statistically significant?
Sig. = p value = .40…greater than .05 therefore NOT significant
Descriptives
SENSAT
77
75.61
10.67
1.22
73.19
78.03
49
99
41
73.80
11.74
1.83
70.10
77.51
50
103
118
74.98
11.04
1.02
72.97
77.00
49
103
Nondrinker
Tea Drinker
Total
N
Mean
Std. Deviation
Std. Error
Lower Bound
Upper Bound
95% Confidence Interval for
Mean
Minimum
Maximum
2c
Look at the descriptives table and the ANOVA summary table (above). What can we conclude from these results
about sensation seeking scores for tea drinkers and nondrinkers? (refer to the means in your
answer and also
statistical significance)
There is no significant difference between the sensation seeking scores of tea drinkers and nondrinkers
(in this case we cannot reject the null hypothesis)
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Mean Square
F
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 Fall '08
 F.Sicoly
 Statistics, Standard Deviation, Statistical hypothesis testing, Statistical significance, impulsivity

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