Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A в 540 450 600 400 540 | 620 480 400 57o 520 410 480 480 470 580 610 360 630 550 560 Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use a = 0.05. State the null and alternative hypotheses. O Ho: Mediana = Mediang = Medianc H3: Mediana + Mediang + Medianc O Ho: Mediana = Mediang = Medianc Hg: Median, > Median, < Medianc O Ho: All populations of test scores are identical. H: Not all populations of test scores are identical. O Ho: Not all populations of test scores are identical. H: All populations of test scores are identical. O Ho: Median, # Mediang + Medianc H3: Mediana = Mediang = Median c Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.)

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Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data.
Program
A
В
C
540
450
600
400
540
620
480
400
570
520
410
480
480
470
580
610
360
630
550
560
Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use a =
0.05.
State the null and alternative hypotheses.
Ho: Mediana
Mediang = Medianc
H: Median, + Median; + Medianc
Ho: Mediana = Mediang
Medianc
%D
Ha: Median, > Mediang < Medianc
Ho: All populations of test scores are identical.
H: Not all populations of test scores are identical.
Ho: Not all populations of test scores are identical.
: All populations of test scores are identical.
Ha:
Ho: Mediana + Mediang + Medianc
Hg: Median, = Mediang = Medianc
%3D
'A
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)
p-value =
Transcribed Image Text:Three admission test preparation programs are being evaluated. Suppose the scores obtained by a sample of 20 people who used the programs provided the following data. Program A В C 540 450 600 400 540 620 480 400 570 520 410 480 480 470 580 610 360 630 550 560 Use the Kruskal-Wallis test to determine whether there is a significant difference among the three test preparation programs. Use a = 0.05. State the null and alternative hypotheses. Ho: Mediana Mediang = Medianc H: Median, + Median; + Medianc Ho: Mediana = Mediang Medianc %D Ha: Median, > Mediang < Medianc Ho: All populations of test scores are identical. H: Not all populations of test scores are identical. Ho: Not all populations of test scores are identical. : All populations of test scores are identical. Ha: Ho: Mediana + Mediang + Medianc Hg: Median, = Mediang = Medianc %3D 'A Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value =
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Find the value of the test statistic. (Round your answer to two decimal places.)
9.06
X
Find the p-value. (Round your answer to three decimal places.)
p-value = 0.011
Transcribed Image Text:Find the value of the test statistic. (Round your answer to two decimal places.) 9.06 X Find the p-value. (Round your answer to three decimal places.) p-value = 0.011
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