Cereal.jmp: Fit Y by X of Sodium by Manufacturer v Oneway Analysis of Sodium By

Question

Cereal.jmp: Fit Y by X of Sodium by Manufacturer v Oneway Analysis of Sodium By Manufacturer 400 a 300 E 200 100 General Mills Kelloggs Quaker Oats Manufacturer v Quantiles Level Minimum 10% 25% Median 75% 90% Maximum 166 285 384 General Mills 140 200 210 420 Kelloggs 334 390 56 150 210 280 135 Post 40 48 220 262.5 345 350 Quaker Oats 20 180 220 260 260 v Means and Std Deviations Std Err Level Number Mean Std Dev Mean Lower 95% Upper 95% General Mills 25 246.800 74.1463 14.829 216.19 277.41 Kelloggs 23 200.435 96.9643 20.218 158.50 242.37 144.89 Post 10 209.000 89.6227 28.341 273.1 216.57 Quaker Oats 11 150.000 99.0959 29,879 83.43

Explanation / Answer

The General Mills' distribution is very skewed right.
See the outliers at the upper end. You can see that in the
quantile stats. The Sodium content is the highest ( we will compare the means here)

Kelloggs' distribution is a very balanced distribution.
It is normally distruted,with no outliers.The Sodium content is the lower than General' Mill'.( Although the spread is more)

The Post distribution hasn't got any outliers. This distribution is almost normal, albeit narrower than the Kellog; dsitribution. Sodium content is 3rd highest.

The Quaker Oats data has no outlier.The distribution is skewed. The sodium content is the lowest is Quaker' Oats.

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