question archive Students that did not graduate high school can get an equivalent degree (GED) by successfully completing a set of tests
Students that did not graduate high school can get an equivalent degree (GED) by successfully completing a set of tests
Subject:StatisticsPrice: Bought3
Students that did not graduate high school can get an equivalent degree (GED) by successfully completing a set of tests. We are interested in the effectiveness of a two-day GED test prep course. To test the effectiveness of the test prep course we get a SRS of incoming test prep students to take a mock GED test before and after the test prep course. Using a well designed matched-pairs setup, we compute the difference in mock test scores (after minus before) and calculate the average sample difference to be = with . Assume that a boxplot of the sample of differences is symmetric with no outliers.
a. If appropriate (aka check conditions), conduct a hypothesis test to see if the two-day test prep course improves student GED scores. That is to say, if appropriate, we want to test the hypothesis:
Provide the calculated test statistic (rounded to 3 decimal places) and use a significance level of =0.01 to make your conclusion (clearly state the P-value range and your final conclusion). Show written work for ALL of the calculations AND include a clearly stated P-value range and final conclusion for the hypothesis test
Test Statistic = ?
b. Based on your conclusion, would you say that you have statistically significant results?
