Management and Organizational Studies 3344A/B Study Guide - Midterm Guide: Confidence Interval, Psy, Standard Deviation

• School: Western University
• Department: Management and Organizational Studies
• Course: Management and Organizational Studies 3344A/B
• Professor: Tim Hill

Document Summary

The typical average age at which children master the concrete operational stage of thinking is 9 years. Children who successfully complete a series of conservation tasks are said to have reached this stage of development. In an effort to determine whether this previously established benchmark age continues to hold true, researchers obtain a random sample of children and record the age at which each child mastered the conservation tasks. Calculate the mean and standard deviation of the dataset. Do the sample data suggest that the previously reported average age for mastery of the concrete operational stage continues to be true (! Provide a 95% confidence interval to estimate the true average age for mastery of the concrete operational stage. In 2013, it was reported that 25% of american adults use prescription medication that has the unintended side effect of blunting empathy.