Identify the test statistic, construct an appropriate confidence interval, what do the results suggest about the effectiveness of seatbelts? Y 9.1.13-TA simple random sample of front-seat occupants involved in car crashes is obtained. Among 2912 occupants not wearing seat belts, 38 were killed. Among 7648 occupants wearing seat belts, 12 were killed. Use a 0.05 significandlevel to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below.Question Helpa. Test the claim using a hypothesis test.Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and altenative hypotheses for the hypothesis test?OA Ho: P1 = P2B. Ho: P1 = P2OC Ho: P1 S P2H1: P1 P2Identify the test statistic.(Round to two decimal places as needed.)Enter your answer in the answer box and then click Check Answer5 partsremaining0V 1021MO->escbackspace&%2496%23784.5213.1.tabenterkaaVshiftctrlaltv2N

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MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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Identify the test statistic, construct an appropriate confidence interval, what do the results suggest about the effectiveness of seatbelts?

Y 9.1.13-T
A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2912 occupants not wearing seat belts, 38 were killed. Among 7648 occupants wearing seat belts, 12 were killed. Use a 0.05 significand
level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below.
Question Help
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and altenative hypotheses for the hypothesis test?
OA Ho: P1 = P2
B. Ho: P1 = P2
O
C Ho: P1 S P2
H1: P1<P2
H: Pi P2
H: P1 # P2
D. Ho p1 zP2
H: p1 P2
Ho: P1 = P2
Ho: P1 = P2
H: P1 = P2
H: P1> P2
Identify the test statistic.
(Round to two decimal places as needed.)
Enter your answer in the answer box and then click Check Answer
5 parts
remaining
0V 1021
M
O
->
esc
backspace
&
%24
96
%23
7
8
4.
5
21
3.
1.
tab
enter
k
a
a
V
shift
ctrl
alt
v
2N

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Given

${\hat{p}}_{1} = p r o b a b i l i t y o f s a m p l e o f o c c u p a n t s g e t t i n g k i l l e d w h o a r e n o t w e a r i n g s e a t b e l t s = \frac{38}{2912} {\hat{p}}_{2} = p r o b a b i l i t y o f s a m p l e o f o c c u o a n t s g e t t i n g k i l l e d w h o w e a r s e a t b e l t s = \frac{12}{7648} n_{1} = s a m p l e s i z e f o r o c c u p a n t s n o t w e a r i n g s e a t b e l t s n_{2} = s a m p l e s i z e f o r o c c u p a n t s w e a r i n g s e a t b e l t s S i g n i f i c a n c e l e v e l = 0.05$

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