10. An instructor teaching algebra 1 to ninth-grade students wishes to analyze the difference between student achievement before and aer the implementation of ar online help resource. For 6 weeks, students worked with conventional, in-class and homework resources, and then for the next 6 weeks, an online help desk was made available to them. The scores for 6 students on a district benchmark test before and after the implementation of the online help resource are listed below. Before: 22, 18, 33, 20, 23, 2? After: 28, 21, 32, 25, 33, 28 11. In a certain town, there are about one million eligible voters. A simple random sample of 10,000 eligible voters was chosen to study the relationship between sex and participation in the last election. The results are summarized in the following table: Male Female Voted 2792 3591 Didn't Vote 1486 2131 12. A college counselor wonders whether second semester students take fewer units than rst semester students. From the population of each group (first semester ant second semester), she selects 10 students at random. The following data were collected: First semester students: 10, 12, 14, 14, 15, 15, 15, 16, 16, 18 Second semester students: 6, 9, 9, 10, 12, 12, 13, 14