Researchers followed a random sample of 2315 middle-aged men from eastern Finland for up to 30 years. They recorded how often each man went to a sauna and whether or not he suffered sudden cardiac death (SCD). The two-way table shows the data from the study. The researchers will perform a chi-square test for independence to test the hypotheses Ho: There is no association between weekly sauna frequency and suffering from sudden cardiac death in the population of middle-aged men from eastern Finland. H.: There is an association between weekly sauna frequency and suffering from sudden cardiac death in the population of middle-aged men from eastern Finland. Weekly sauna frequency What are the chi-square statistic, degrees of freedom, 1 or fewer 2-3 4 or more Total and P-value? Yes 61 119 10 190 O x' = 6.032, df = 2, P-value = 0.9510 SCD No 540 1394 191 2125 O x? = 6.032, df = 6, P-value = 0.4196 Total 601 1513 201 2315 O x? = 6.032, df = 3, P-value = 0.1101 O x? = 6.032, df = 2, P-value = 0.0490 O x = 6.032, df = 5, P-value = 0.3031

Researchers followed a random sample of 2315 middle-aged men from eastern Finland for up to 30 years. They recorded how often each man went to a sauna and whether or not he suffered sudden cardiac death (SCD). The two-way table shows the data from the study. The researchers will perform a chi-square test for independence to test the hypotheses Ho: There is no association between weekly sauna frequency and suffering from sudden cardiac death in the population of middle-aged men from eastern Finland. H.: There is an association between weekly sauna frequency and suffering from sudden cardiac death in the population of middle-aged men from eastern Finland. Weekly sauna frequency What are the chi-square statistic, degrees of freedom, 1 or fewer 2-3 4 or more Total and P-value? Yes 61 119 10 190 O x' = 6.032, df = 2, P-value = 0.9510 SCD No 540 1394 191 2125 O x? = 6.032, df = 6, P-value = 0.4196 Total 601 1513 201 2315 O x? = 6.032, df = 3, P-value = 0.1101 O x? = 6.032, df = 2, P-value = 0.0490 O x = 6.032, df = 5, P-value = 0.3031

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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