II-4.The following pairwise comparison was conducted between competing artillery systems using Radial Miss Distance as a MOP.Test the hypothesis that there is no statistically significant difference between the artillery systems at a 90% confidence level.Each weapon system fired four rounds.Would you accept or reject the hypothesis based on the following test results (radial miss distances and standard deviations)?

Weapon System I:13, 11, 10, 12,with s_I = 1.29

Weapon System II:15, 11, 13, 12,with s_II = 1.71

Compare two different approaches assuming unequal and equal (pooled) variances.

Explain why you have / do not have a difference.