10.1.17 E Queston Hel The national distribution of fatal work injies i, a countr

Question

10.1.17 E Queston Hel The national distribution of fatal work injies i, a country is shown inthe table tote right under National % You beleve Nthe distribution of fatal work injuries is different in the western part of the country and randomly select 6231 atal work injuries occuring in that Transportation regen AZ ?·0. 10 can you conclude that the d titution od Satal work innes n the west is di Orent tom the national disebuton ? Complete parts a through d below 19% 14% 13% 9% 1150 s04 748 534 Stale Ho and H, and identily the claies

Explanation / Answer

Ho:fatal work injury is same as national distirbution

Ha:fatal work injury is different from national distirbution

for (6-1=5) degree of freedom critical value =9.236

applying chi square goodness of fit test:

from above test startisitc =77.978

as test statistic is higher than critical value we reject null hypothesis

observed Expected Chi square category Probability(p) Oi Ei=total*p R2i=(Oi-Ei)2/Ei transport 0.420 2885.000 2617.02 27.44 equipment 0.190 1158.000 1183.89 0.57 assaults 0.140 804.000 872.34 5.35 fa;lls 0.130 748.000 810.03 4.75 harmful fumes 0.090 534.000 560.79 1.28 fires 0.030 102.000 186.93 38.59 total 1 6231 6231 77.9780

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