Copyright Malvin Porter, Jr. 2010 - acumen - The University of ...

Of the 284 Best Action Choice responses selected by males, 216 were Prosocial Action
Choices (sample p = 0.760563). Of the 348 Best Action Choice responses selected by females,
272 were Prosocial Action Choices (sample p = 0.781609). The estimate of the difference
between male responses and female responses was -0.0210458. The hypothesized difference in
proportions of zero lies within the 95% CI (-0.0869813, 0.0448896) for the difference in
proportions between male responses and female responses to Prosocial Action Choices.
Therefore, zero is a plausible value for the difference in proportions between male responses and
female responses to Prosocial Action Choices. I conclude that there is no significant difference in
the proportion of male responses and the proportion of female responses to Prosocial/Care
Justifications. Therefore, I fail to reject the null hypothesis and I conclude that males were as
likely to choose Prosocial Action Choices as females. See Table 21.
Table 21
CBVS Test and Confidence Interval for the Proportion of Males and the Proportion of Females
who Selected Prosocial Action Choices
Sample ƒ n Sample p
Male 216 284 0.760563
Female 272 348 0.781609
Test of p = 0 vs. p ≠ 0
Difference = p (male) – p (female)
Estimate for difference: -0.0210458
95% CI (-0.0869813, 0.0448896)
Test for difference = 0 (vs. ≠ 0): Z = -0.63 P-Value = 0.532
Fisher's exact test: P-Value = 0.568
N = 632 responses
102