towards an analysis of errors made by university students ... - DSpace

z = (126 - g, 5) - no = 15,50 ] 8Q
C73,7) 1 /'s 8,58
^5% ~ »65 < 1,80. H 0 is to be accepted
3.1.4. The test of proportion applied to the results
from the specific texts, in the Nursing
Group.
H 0 : P * —
h : p < — L
1
3
2 = (113 - 0,5) - 178,6 = -66,1 = _ 6 05
(119,66) . 10,93
Z 5% = -1>65 > -6,05. H Q is to be rejected
3.2. Test of Student
To verify whether the average of error rates per
student, in each ngp, in the specific texts was different from
the average of error rates per student, in each ngp, in the
nonspecific
texts, the 't 1 test of Student, for the difference of
averages, was applied ( x-j 4 x^ )• first sample (n-j) consists
of the two non-specific texts, from which the average (x-j) of
error rates per student, in each ngp, and the standard
deviation
(s-j) have beer, estimated. The second sample was formed by the
specific texts, from which the average (-j^) of error rates per
student, in each ngp, and the standard deviation
($£) have been
—
estimatedjx
— y X í
is obtained from the formula x = where x i is
n
the error rate per student, in each ngp, in each text, and n is
the number of translated texts. The formula for s is
_ H;(*i - x) 2