Conduct an independent samples Ttest to decide if the weight

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

Solution

Here we consider the assumed the equal variance or not, the null hypothesis is both the case is rejected.