Explore BrainMass

Explore BrainMass

    Chi-Square Test for Independence of Two Groups

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Please provide steps for the question below:

    A study is designed to investigate whether there is a difference in response to various treatments for patients with chronic pain. The data is shown below. Is there a statistically significant difference in the proportions of patients who show improvement? Between treatment 1 and 2? Use a 5% level of significance.

    Critical value =
    _________// Symptoms worsened // No effect // Symptoms improved // Total
    Treatment // 1 // 22 // 14 // 14 // 50
    Treatment // 2 // 14 // 15 // 21 // 50

    © BrainMass Inc. brainmass.com June 4, 2020, 4:04 am ad1c9bdddf
    https://brainmass.com/statistics/descriptive-statistics/chi-square-test-independence-two-groups-547805

    Solution Preview

    A study is designed to investigate whether there is a difference in response to various treatments I patients with chronic pain. The data are shown below. I there statistically significant difference in the proportions of patients who show improvement. Between treatment 1 ...

    Solution Summary

    The solution gived detailed steps on performing a chi-square test for independence of two groups. All formula and calcuations are shown and explained.

    $2.19

    ADVERTISEMENT