Posted by Anonymous on Wednesday, November 7, 2012 at 3:23am.
Body masses were measured for five female and five male adult Anolis lizards. Test the hypothesis of no difference in mean body mass of females and males versus the alternative that a difference exists. Use a 5% level of significance. Body Mass (g):
Females 55,49,60,51,56 and for Males the weights are: 54,50,45,47,51

Statistics  MathGuru, Wednesday, November 7, 2012 at 5:36pm
Try an independent groups ttest. This will be a twotailed test because the problem is asking if there is a difference, which could be in either direction.
Hypotheses:
Ho: µ1 = µ2 (1 = females; 2 = males)
Ha: µ1 ≠ µ2
Compare the test statistic you calculate with .05 level of significance for a twotailed test using a ttable.
Degrees of freedom = n1 + n2  2
I'll let you take it from here.
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