To study the effectiveness of a certain adult reading program, researchers will select a random sample of adults who are eligible for the program. The selected adults will be given a pretest before...

To study the effectiveness of a certain adult reading program, researchers will select a random sample of adults who are eligible for the program. The selected adults will be given a pretest before beginning the program and a post-test after completing the program. The difference in the number of correct answers on the pretest and the number of correct answers on the post-test will be recorded for each adult in the sample.Which of the following is the most appropriate inference procedure for the researchers to use to analyze the results? * 4 points A) A one-sample z-interval for a population proportion B) A one-sample t-interval for a sample mean difference C) A two-sample t-interval for a difference between means D) A matched-pairs t-interval for a sample mean difference E) A matched-pairs t-interval for a population mean difference