A sports psychologist gave a questionnaire about healthy eating habits to random
ID: 3232193 • Letter: A
Question
A sports psychologist gave a questionnaire about healthy eating habits to randomly selected professional athletes. The results are displayed below. Using the .05 significance level, is there a difference in healthy eating habits among professionals in the three sports? Be sure to include a report to determine if/how the groups are different.
Baseball: 32 27 26 35
Basketball: 27 36 25 30
Football: 27 23 26 20
a) Using SPSS, compute this statistical test.
b) Give an interpretation of this data and report the statistics. If you choose a one-way ANOVA, be sure to report post-hoc comparisons.
Explanation / Answer
Answer:
A sports psychologist gave a questionnaire about healthy eating habits to randomly selected professional athletes. The results are displayed below. Using the .05 significance level, is there a difference in healthy eating habits among professionals in the three sports? Be sure to include a report to determine if/how the groups are different.
Baseball: 32 27 26 35
Basketball: 27 36 25 30
Football: 27 23 26 20
a) Using SPSS, compute this statistical test.
Descriptives
habits
N
Mean
Std. Deviation
Std. Error
95% Confidence Interval for Mean
Minimum
Maximum
Lower Bound
Upper Bound
Baseball
4
30.00
4.243
2.121
23.25
36.75
26
35
Basketball
4
29.50
4.796
2.398
21.87
37.13
25
36
Football
4
24.00
3.162
1.581
18.97
29.03
20
27
Total
12
27.83
4.687
1.353
24.86
30.81
20
36
ANOVA
habits
Sum of Squares
df
Mean Square
F
Sig.
Between Groups
88.667
2
44.333
2.608
.128
Within Groups
153.000
9
17.000
Total
241.667
11
b) Give an interpretation of this data and report the statistics. If you choose a one-way ANOVA, be sure to report post-hoc comparisons.
There are 4 observations for each group. The mean healthy eating habits of Baseball group is 30 with standard deviation 4.243. The mean healthy eating habits of Bsaketball group is 29.5 with standard deviation 4.796. The mean healthy eating habits of Football group is 24 with standard deviation 3.162.
There is no significant difference in mean healthy eating habits among the three groups, F=2.608, P=0.128.
Post hoc test is not appropriate since the F test is not significant.
However the output displayed.
Multiple Comparisons
Dependent Variable: habits
Tukey HSD
(I) group
(J) group
Mean Difference (I-J)
Std. Error
Sig.
95% Confidence Interval
Lower Bound
Upper Bound
Baseball
Basketball
.500
2.915
.984
-7.64
8.64
Football
6.000
2.915
.154
-2.14
14.14
Basketball
Baseball
-.500
2.915
.984
-8.64
7.64
Football
5.500
2.915
.198
-2.64
13.64
Football
Baseball
-6.000
2.915
.154
-14.14
2.14
Basketball
-5.500
2.915
.198
-13.64
2.64
Descriptives
habits
N
Mean
Std. Deviation
Std. Error
95% Confidence Interval for Mean
Minimum
Maximum
Lower Bound
Upper Bound
Baseball
4
30.00
4.243
2.121
23.25
36.75
26
35
Basketball
4
29.50
4.796
2.398
21.87
37.13
25
36
Football
4
24.00
3.162
1.581
18.97
29.03
20
27
Total
12
27.83
4.687
1.353
24.86
30.81
20
36
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