The Biomechanics Lab at Hope College tested healthy old women and healthy young women to discover whether or not lower extremity response time to a stimulus is a function of age. Let X and Y respectively equal the independent response times for these two groups when taking steps in the anterior direction. Find a one-sided 95% confidence interval that is a lower bound for μX−μY if n = 60 observations of X yielded
and sx = 129,while m = 60 observations of Y yielded
and sy = 93.
INVISIBLE INEQUALITY: SOCIAL CLASS & CHILDREARING Language Use ● The way parents stress reasoning and negotiation ● The development and support of the child’s opinions, judgments, and observations ● The use of directives given by parents Social Connections ● The impact of involvement in adult-organized activities ● Differences in relationships with the extended family ● Differences in experiences with representatives of major social institutions ○ Schools ○ Law enforcement Impact of Childrearing Strategies ● Concerted cultivation = emerging sense of entitlement ○ Middle class children expect institutions to be responsive to them