Question: Does mean number of ATM transactions differ among low balance group ( $1500)?
1. Ho: Mean number of ATM transaction is same across three groups.
Ha: Mean number of ATM transaction is different for at least one group.
2. Level of significance chosen: 0.01
3. Type of test statistic: H-statistic
Kruskal-Wallis Test
Avg.
Median n Rank
5.50 10 10.45 Group 1
8.50 16 26.69 Group 2
12.00 34 38.19 Group 3
10.00 60 Total
20.686 H (corrected for ties)
2 d.f.
3.22E-05 p-value
multiple comparison values for avg. ranks
13.22 (.05) 16.21 (.01)
4. Critical value: 16.21, p-value = 3.22E-05
Decision rule: Reject null hypothesis if H>16.21 or p-value < 0.01
5. As p-value is less than significance level, null hypothesis is rejected.
It is concluded that the mean number of ATM transaction is not same among the three groups