26. Rocket Propellants An experiment was conducted to compare three mixtures of components in making rocket propellant. Five samples of each mixture were obtained for testing. Five investigators measured the propellant thrust in pounds for each of the mixtures, with the mixtures presented in random order

a. Identify the treatments and the blocks in this experiment and provide an appropriate analysis of variance.

b. Is there sufficient evidence to conclude there is a significant difference in the propellant thrust for the mixtures? Use a 5.01.

c. Was blocking effective? Use the p-value to draw your conclusions and justify your answer.

d. Use Tukey’s pairwise comparisons with a 5.01 to determine which propellant mixtures differed from others. Summarize your results.

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Mixtures Investigators 1 2 3 12345 42 39 45 37 36 40 43 48 50 41 47 52 39 42 47