I would need help with the above questions:

Problem 1. An experiment is conducted to compare four different mixtures of the components oxidizer, binder, and fuel used in the manufacturing of rocket propellant. To compare the four mixtures, five different samples of propellant are prepared from each mixture and readied for testing. Each of five investigators is randomly assigned one sample of each of the four mixtures and asked to measure the propellant thrust. A) What is the most suitable statistical design to analyze this data (2pt) B) Write out all possible null hypothesis (2 pts) I performed the Post-Hoc Analysis on the data and the results provided in the following table. C) Based on a=0.05, is there enough evidence to reject the null hypothesis you stated in question (B) above? (1 pt) D) If the null hypothesis rejected, then, based on the following Post-Hoc results write out the complete alternative hypothesis (10 pts) Dependent Variable: Thrust +Multiple Comparisons (Tukey HSD) Mean () Mixture (Treatment) (J) Mixture (Treatment) Difference Sid Error Sig. 95% Confidence Interval (1 . J) Lower UDDer Mixture 1 Mixture 2 -302.20* 5.24 000 317.78 -296.61 Mixture 3 -93.20" 5.24 .000 -108.78 -77.61 Mixture 4 -55.60 5.24 .000 71.18 - 40.01 Mixture 2 Mixture 1 302.20' 5.24 .000 286.61 317.78 Mixture 3 209.00' 5.24 000 193.41 224.58 Mixture 4 246.60' 5.24 .000 231.01 262.18 Mixture 3 Mixture 1 93.20* 5.24 000 17.61 108.78 Mixture 2 -209.00* 5.24 000 -224.58 -193.41 Mixture 4 37.60 5.24 0001 22.01 53.18 Mixture 4 Mixture 1 55.60' 5.24 000 40.01 71.18 Mixture 2 -246.60" 5.24 .0000 -262.18 -231.01 Mixture 3 -37.60 5.24 0001 -53.18 -22.01 Based on observed means. * The mean difference is significant at the 0.05 level