Question

! Chapter 7, Problem 12P 0 2 Bookmarks Show all steps: ON Suppose the incidence rate of myocardial infarction (MI) was 5 per 1000 among 45- to 54-year- old men in 2000. To look at changes in incidence over time, 5000 men in this age group were followed for 1 year starting in 2010. Fifteen new cases of MI were found. Using the gritical value method with a = .05, test the hypothesis that incidence rates of MI changed from 2000 to 2010.

Answer 1

Given x15 n5oo0 O003 To test Ho S looo Test statistie P-P 2 PCI-P) n 0 003 ooo5 o OO2 2- O.Ool -2 P-v alue eritical val ue at O OS O.OS O 025 (from 2- O.025 Here 24 There fore e rject Ho There is suffi cient evidence to support the Conclusion that incidence rde of MI changed elaim from to 2000 2010