A case-contral (orretrospective study was conducted to investigete areletionship beteen the colors of heimets wom by motorcycie drves end whether they are injured or kled in e cresh. Resuts are given in the accompenying teble. Usinga 0.05 significance evel, test the ciaim thet injuries are independent of heimet color. Blaok 475 Color of Heimet White 332 Yellow Red Blue Controis (not injured) Caces (Injured or kiled 25 162 103 203 108 E7 Identity the nuland altemative hypotheses. Chocse the comectanswer below. OA H: Whethera cresh occurs end heimet color ere dependent H: Whethera crash occurs and heimet color are Independent OB. H injuries and heimet color ere independent H: Injuries and heimet color are dependent OC. H: Whether a cresh occurs and heimet color are independent H: Whethera crash occurs and heimet color ae dependent OD. H Injuries and heimet color are dependent H: Injuries and heimet color are independent Compute the test statistic (Round to three decimel places s needed.) Find the critical values (Round to three decimel places es needed. Use e comme to secerete ansers es needed.) Whet is the condusion besed on the hypothesis test? H. There sufficient evidence to warrant rejection of the claim that injuries are independent of heimet color.

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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Question

Area to the Right of the Critical Value

Degrees of Freedom	0.995	0.99	0.975	0.95	0.90	0.10	0.05	0.025	0.01	0.005
1	-	-	0.001	0.004	0.016	2.706	3.841	5.024	6.635	7.879
2	0.010	0.020	0.051	0.103	0.211	4.605	5.991	7.378	9.210	10.597
3	0.072	0.115	0.216	0.352	0.584	6.251	7.815	9.348	11.345	12.838
4	0.207	0.297	0.484	0.711	1.064	7.779	9.488	11.143	13.277	14.860
5	0.412	0.554	0.831	1.145	1.610	9.236	11.071	12.833	15.086	16.750
6	0.676	0.872	1.237	1.635	2.204	10.645	12.592	14.449	16.812	18.548
7	0.989	1.239	1.690	2.167	2.833	12.017	14.067	16.013	18.475	20.278
8	1.344	1.646	2.180	2.733	3.490	13.362	15.507	17.535	20.090	21.955
9	1.735	2.088	2.700	3.325	4.168	14.684	16.919	19.023	21.666	23.589
10	2.156	2.558	3.247	3.940	4.865	15.987	18.307	20.483	23.209	25.188

A case-contral (orretrospective study was conducted to investigete areletionship beteen the colors of heimets wom by motorcycie drves end whether they are injured or kled in e cresh. Resuts are given in the accompenying teble. Usinga 0.05 significance evel, test the ciaim thet injuries are independent of heimet color.
Blaok
475
Color of Heimet
White
332
Yellow
Red
Blue
Controis (not injured)
Caces (Injured or
kiled
25
162
103
203
108
E7
Identity the nuland altemative hypotheses. Chocse the comectanswer below.
OA H: Whethera cresh occurs end heimet color ere dependent
H: Whethera crash occurs and heimet color are Independent
OB. H injuries and heimet color ere independent
H: Injuries and heimet color are dependent
OC. H: Whether a cresh occurs and heimet color are independent
H: Whethera crash occurs and heimet color ae dependent
OD. H Injuries and heimet color are dependent
H: Injuries and heimet color are independent
Compute the test statistic
(Round to three decimel places s needed.)
Find the critical values
(Round to three decimel places es needed. Use e comme to secerete ansers es needed.)
Whet is the condusion besed on the hypothesis test?
H. There
sufficient evidence to warrant rejection of the claim that injuries are independent of heimet color.

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