Kuya heard that oldest children tend to be more miserable about
life than their youngest siblings (not taking into consideration
the number of siblings in between). Kuya gathered data from 33
families and measured their scores on a misery scale. The lower the
score, the more miserable the person tends to be.
MISERY SCALE
SCORES 


Oldest 
Youngest 
62 
62 
80 
67 
70 
62 
56 
66 
86 
71 
79 
63 
68 
64 
67 
64 
62 
73 
74 
71 
68 
70 
69 
67 
62 
63 
62 
69 
97 
68 
90 
62 
74 
70 
75 
76 
82 
72 
70 
64 
72 
69 
62 
72 
61 
68 
58 
69 
77 
68 
70 
65 
57 
65 
89 
63 
77 
71 
79 
66 
97 
61 
66 
74 
90 
81 
The appropriate test for this problem is:

t test for dependent samples 

t test for independent samples 
The obtained statistic is:

t = 4.28
The associated p value is:

Decision is:

reject the null hypothesis 

retain the null hypothesis 
Conclusion is:

youngest children tend to be less miserable than their oldest
siblings 

youngest children tend to be more miserable than their oldest
siblings 

both groups are equally miserable 

no conclusion can be drawn 