4. Standard deviation and variance for a sample

The Bem Sex Role Inventory (BSRI) provides independent assessments of masculinity and femininity in terms of the respondent's self-reported possession of socially desirable, stereotypically masculine and feminine personality characteristics.

Alison Konrad and Claudia Harris sought to compare women in Bem's 1974 sample to women 25 years later on their judgments of the desirability of 40 masculine, feminine, or androgynous traits.

Suppose that the following are the scores from a hypothetical sample of the 1974 female respondents for the attribute Ambitious.

6

5

2

7

5

Calculate the mean, degrees of freedom, variance, and standard deviation for this sample.

M	=
df	=
s	=
s	=

Suppose that the following are the scores from a hypothetical sample of the 1999 female respondents for the attribute Gullible.

3

1

4

3

2

2

Calculate the mean, degrees of freedom, variance, and standard deviation for this sample.

M	=
df	=
s	=
s	=