STATISTICS

Answer the given problem. Analyze what tool should be used.

Shown below are weights (kg) of popular trees obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the table below.

No treatment	Fertilizer	Irrigation	Fertilizer and irrigation
1.21	0.94	0.07	0.85
0.57	0.87	0.66	1.78
0.56	0.46	0.10	1.47
0.13	0.58	0.82	2.25
1.30	1.03	0.94	1.64

Use a 0.05 level of significance to test the claim that the different treatments result in the same mean weight. Interpret your result.

Follow the steps in solving the problem, namely:

1. Hypothesis ex. H0: = 9.0 H1: 9.0 2. Level of significance ex. = 0.01 3. Test Statistic ex. z = x - 0 / / n 4. Critical Region ex. graph and /2 = +-0.025 5. Computation ex. compute using formula 6. Decision ex. accept H0 since the computed z-value falls in the region of acceptance. 7. Conclusion ex. there is no reason to believe the ...