12. Suppose you wish to compare two companies which appraise () the values of cars. You select a sample of 3 cars (samples are dependent), the results of appraise are reported in the table below: Company 1 Car Company 2 1 2000 2100 2 3000 2980 3 4000 4100 4 4100 4200 At 0.05 significance level what is the critical value for this test: HO: μd-0 H1: p_d30* t = 4.303 t= 3.182 z= 2.505 O z= 4.250

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12. Suppose you wish to compare two
companies which appraise (i ) the
values of cars. You select a sample of 3
cars (samples are dependent), the results
of appraise are reported in the table below:
Car
Company 1
Company 2
1
2000
2100
2
3000
2980
3
4000
4100
4
4100
4200
At 0.05 significance level what is the
critical value for this test :
HO: P_d=0
H1: p_d0*
t = 4.303
O t= 3.182
z= 2.505
O z= 4.250
Transcribed Image Text:12. Suppose you wish to compare two companies which appraise (i ) the values of cars. You select a sample of 3 cars (samples are dependent), the results of appraise are reported in the table below: Car Company 1 Company 2 1 2000 2100 2 3000 2980 3 4000 4100 4 4100 4200 At 0.05 significance level what is the critical value for this test : HO: P_d=0 H1: p_d0* t = 4.303 O t= 3.182 z= 2.505 O z= 4.250
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