Given the following sample data
Item Group 1 Group 2 Group 3 Group 4
1 20.9 28.2 17.8 21.2
2 27.2 26.2 15.9 23.9
3 26.6 21.6 18.4 19.5
4 22.1 29.7 20.2 17.4
5 25.3 30.3 14.1
6 30.1 25.9
7 23.8
Based on the computations for the within- and between-sample variation, develop the ANOVA table and test the appropriate null hypothesis using alpha= 0.05. Use the p-value approach.
A) Since p-value = 0.0678 > 0.05 reject H0 and conclude that at least two population means are different.
B) Since p-value = 0.000136 < 0.05 reject H0 and conclude that at least two population means are different.
C) Since p-value = 0.0678 > 0.05 accept H0 and conclude that all population means are the same.
D) Since p-value = 0.000136 < 0.05 accept H0 and conclude that all population means are the same.
Question 2
The number of customers who enter a bank is thought to be Poisson distributed with a mean equal to 10 per hour. What are the chances that 2 or 3 customers will arrive in a 15-minute period?
A) 0.0099
B) 0.4703
C) 0.0427
D) 0.0053
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