Therefore it is an experiment of comparing three

Reference no: EM13634569

We are presenting in the accompanying chart the achievement test scores for 15 trainees assigned to three different training methods. Each method was taught to 5 trainees. Therefore it is an experiment of comparing three populations by selecting independent samples. Use a Kruskall- Wallis test to test the null hypothesis that the populations have the same median, with alpha=0.05.

Method 1		Method 2		Method 3
Score	Rank	Score	Rank	Score	Rank
86		90		82
79		76		68
81		88		73
70		82		71
84		89		81

a) Compute H = ______________________

b) Compute the Chi-Square Critical value ________________________

c) Statistical Decision __________________ ( Reject Ho, Fail to reject Ho)

d) The medians are not significantly different ____________________ (True, False)

Reference no: EM13634569

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