NURS 701 – Statistical Analysis Questions – Assignment 4 For

NURS 701 – Statistical Analysis Questions – Assignment 4 For each of the questions below, carry out an appropriate analysis to answer the research questions. The JMP files for some of the questions are located on the Datasets page. 1. Weiner et al. (1979) in their paper “Correlations among history of angina, ST-segment response and prevalence of coronary-artery disease in the Coronary Artery Surgery Study (CASS)” published in the New England Journal of Medicine 301: 230-235, the researchers related clinical diagnosis of chest pain to the results of angiographic examination of the coronary arteries. The following data were obtained are presented below and they are also found in the data file: Chest Pain-Vessels.JMP. Number of Vessels Diseased Chest Pain 0 – Vessels 1 – Vessel 2 – 3 Vessels Row Totals 3 – Definite Angina 66 135 419 620 2 – Probable Angina 179 139 276 594 1 – Nonischemic Pain 197 39 15 251 Column Totals 442 313 710 n = 1,465 a) Calculate the following measures of association Phi, Cramer’s V, Pearson’s Contingency Coefficient for these data. Summarize the results. (5 pts.) b) Calculate both asymmetric Lambda measures and the symmetric Lambda. Summarize these results. (5 pts.) c)

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