Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. An article in the Journal of Aircraft (1986, Vol.23, pp. 859-864) described a new equivalent plate analysis method formulation that is capable of modeling aircraft structures such as cranked wing boxes and that produces results similar to the more computationally intensive finite element analysis method, Natural vibration frequencies for the cranked wing box structure are calculated using both methods, and results for the first seven natural frequencies follow: Frequency Finite Element, Cycles Equivalent Plate, Cycles 1 14.58 2 3 4 5 6 7 48.52 97.21 113.99 174,73 212.72 277.38 14.76 49.10 99.99 Yes, the equivalent plate method is better since all of the values in the intervalore negative No, there is no significant difference between the two methods 117.53 181.22 220.14 294.80 Use only Table V of Appendix A. (a) De the data suggest that the two methods provide the same mean value for natural vibration frequency? Find interval for P-value: