ECON 15B Study Guide - Midterm Guide: Null Hypothesis, Test Statistic, Standard Deviation
Document Summary
July 20, 2018 (two questions twenty points). Let"s suppose we had a sample of 200 skittles. (we are continuing with the situation in (two questions twenty points) there is a sample of 25 boys and a sample of 40 girls. Ten of the boys have read novel x, 1 2. and ten of the girls have read novel x. Use a 2 test to see if gender and reading novel x are independent. You need to calculate the test- statistic, state the critical value, come to a conclusion about the null hypothesis, and state what this means concerning the association between gender and novel x. Let = . 05: what"s the major difference between when you use a 2 test for independence and a 2 test goodness-of-fit test, we have taken a sample of a bag of skittles rainbow candy. It is supposed to be 30% red, 20% yellow, 20% green, 20% orange, and 10% purple.
