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 t-test. This will be a two-tailed 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 two-tailed test using a t-table.

Degrees of freedom = n1 + n2 - 2

I'll let you take it from here.

## Answer this Question

## Related Questions

- Statistics - The Computer Anxiety Rating Scale (CARS) measures an individual's ...
- Statistics - Cholesterol levels of adult males are approximately normally ...
- biology - This is to do with genetics and drosophila. There are 3 pairs of ...
- Biology - This is to do with genetics and drosophila. There are 3 pairs of ...
- STAT - Numerous studies have found that males report higher self-esteem than ...
- statistics - Cholesterol levels of adult males are approximately normally ...
- statistics - Cholesterol levels of adult males are approximately normally ...
- Statistics - A Youth Correction Center completed a study to explore the ...
- stats - 18. Numerous studies have found that males report higher self-esteem ...
- Math - Refer to the following chart. Using the equation (body-size factor X ...