Question: need help with part b Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. In The
need help with part b


Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. In "The Effect of Nozzle Design on the Stability and Performance of Turbulent Water Jets" (Fire Safety Journal, Vol. 4, August 1981), C. Theobald describes an experiment in which a shape measurement was determined for several different nozzle types at different levels of jet efflux velocity. Interest in this experiment focuses primarily on nozzle type, and velocity is a nuisance factor. The data are as follows: Jet Efflux Velocity (m/s) Nozzle Type JEF 11.73 JEF 14.37 JEF 16.59 JEF 20.43 JEF 23.46 JEF 28.74 1 0.78 0.8 0.81 0.75 0.77 0.78 2 0.85 0.85 0.92 0.86 0.81 0.83 3 0.93 0.92 0.95 0.89 0.89 0.83 4 1.14 0.97 0.98 0.88 0.86 0.83 5 0.97 0.86 0.78 0.76 0.76 0.75 (a) Does nozzle type affect shape measurement? Base your decision in part (a) on the box plot below. 1.15 1.05 SHAPE 0.96 0.85 0.75 2(b) Use analysis of variance (ANOVA) to determine if nozzle type has an effect on shape measurement. Calculate to 2 decimal places f0: i 5.31 Is there statistical evidence to support a difference in the shape measurement due to nozzle type based on the ANOVA? ' V
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