Listed below are highway fuel consumption amounts (mi/gal) for cars categorized
ID: 3389155 • Letter: L
Question
Listed below are highway fuel consumption amounts (mi/gal) for cars categorized by the sizes of small, midsize, and large. Using a 0.05 significance level, test the claim that the three size categories have the same median highway fuel consumption. Use the Kruskal-Wallis test
Small
28
26
23
24
26
24
25
Midsize
28
31
26
30
28
29
31
Large
34
36
28
40
33
35
26
Multiple Choice
A. ) Test statistic: H= 0.7218, critical value: X2=5.9911,P -value=0.348, fail to reject the null hypothesis of equal medians.
B.) Test statistic: H=8.1339 , critical value: X2=7.5372, P-value=0.0012, reject the null hypothesis of equal medians.
C.) Test statistic: H= 11.8349 , critical value: X2=8.7345, P-value=0.0966, fail to reject the null hypothesis of equal medians.
D.) Test statistic: H= 8.1339, critical value: X2=7.5372, P-value=0.063, fail to reject the null hypothesis of equal medians.
E.) Test statistic: H= 11.8349, critical value: X2=5.991 , P-value=0.0027, reject the null hypothesis of equal medians.
Small
28
26
23
24
26
24
25
Midsize
28
31
26
30
28
29
31
Large
34
36
28
40
33
35
26
Explanation / Answer
Listed below are highway fuel consumption amounts (mi/gal) for cars categorized
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