Conduct an independent samples T-test to decide if the weight is equal between t
ID: 3386800 • Letter: C
Question
Conduct an independent samples T-test to decide if the weight is equal between the two genders. Decide whether to assume equal variance or not. Use 5%-significance level for both decisions. Test the means
T-TEST FROM SPSS
Group statistics
Sex
N
Mean
Std. Deviation
Std. Error Mean
Weight in kilos
man
13986
78,9916
6,91929
,05851
woman
18388
65,0113
6,31694
,04658
lndependent Sample test
Levene's Test for Equality of Variances
t-test for Equality of Means
F
Sig.
t
df
Sig. (2-tailed)
Mean Difference
Std. Error Difference
95% Confidence Interval of the Difference
Lower
Upper
Weight in kilos
Equal variances assumed
105,450
,000
189,255
32372
,000
13,98033
,07387
13,83554
14,12512
Equal variances not assumed
186,932
28595,831
,000
13,98033
,07479
13,83374
14,12692
Sex
N
Mean
Std. Deviation
Std. Error Mean
Weight in kilos
man
13986
78,9916
6,91929
,05851
woman
18388
65,0113
6,31694
,04658
Explanation / Answer
Here we consider the assumed the equal variance or not, the null hypothesis is both the case is rejected.