Crossover trial: A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a period of time, then switch to the other. The responses of the subjects are then compared using matched-pair methods. In an experiment to compare two pain relievers, seven subjects took one pain reliever for two weeks, then switched to the other. They rated their pain level from 1 to 10, with larger numbers representing higher levels of pain. The results are listed below. Can you conclude that the mean pain level is less with drug B? Let μ₁ represent the mean pain level with drug and ₁₂. Use the a = 0.01 level and the critical value method with the table. Subject E ! 1 2 3 4 5 6 7 Drug A 6 4 3 2 3 66 Drug B 4 2 1 2 3 3 6 Send data to Excel (a) State the appropriate null and alternate hypotheses. (b) Compute the test statistic. (c) State a conclusion. Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₁ H₂ = 0 H₁ H₂>0 This is a right-tailed ▼test. Part: 15 Part 2 of 5 Find the critical value. Round the answer to three decimal places. If there is more than one critical value, separate them with commas. The critical value(s): + S X

Crossover trial: A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a period of time, then switch to the other. The responses of the subjects are then compared using matched-pair methods. In an experiment to compare two pain relievers, seven subjects took one pain reliever for two weeks, then switched to the other. They rated their pain level from 1 to 10, with larger numbers representing higher levels of pain. The results are listed below. Can you conclude that the mean pain level is less with drug B? Let μ₁ represent the mean pain level with drug and ₁₂. Use the a = 0.01 level and the critical value method with the table. Subject E ! 1 2 3 4 5 6 7 Drug A 6 4 3 2 3 66 Drug B 4 2 1 2 3 3 6 Send data to Excel (a) State the appropriate null and alternate hypotheses. (b) Compute the test statistic. (c) State a conclusion. Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₁ H₂ = 0 H₁ H₂>0 This is a right-tailed ▼test. Part: 15 Part 2 of 5 Find the critical value. Round the answer to three decimal places. If there is more than one critical value, separate them with commas. The critical value(s): + S X

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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