Lesson 4-Mod 7 Cereal Analysis (7) Compatibility Mode) Layout References Mailing

Question

Lesson 4-Mod 7 Cereal Analysis (7) Compatibility Mode) Layout References Mailings Review MOD 7 CEREAL ANALYSIS ASSIGNMENT Directions: To successfully analyze and compare the data in the dot-plots, you need to carefully study the material on pages 30 and 31 in OLl. Additionally, to earn credit, you must type your analysis. Bring a copy of your typed quiz with you to the next class meeting. I will collect them promptiy when class starts, and then we will use a Paper Exchange (peer review grading) to evaluate them. Afterwards, I will collect the quizzes and review them. Your grade will be based on your analysis and how well you evaluate a classmate's work during the Paper Exchange. Use descriptions of shape, center, and spread to compare the distribution of protein in the adult and child cereals. child adult Protein

Explanation / Answer

Shape

The shape of a distribution is described by the following characteristics.

Symmetry: When it is graphed, a symmetric distribution can be divided at the center so that each half is a mirror image of the other.

  

Number of peaks: Distributions can have few or many peaks. Distributions with one clear peak are called unimodal, and distributions with two clear peaks are called bimodal. When a symmetric distribution has a single peak at the center, it is referred to as bell-shaped.

  

Skewness: When they are displayed graphically, some distributions have many more observations on one side of the graph than the other. Distributions with fewer observations on the right (toward higher values) are said to be skewed right; and distributions with fewer observations on the left (toward lower values) are said to be skewed left.

  

Uniform: When the observations in a set of data are equally spread across the range of the distribution, the distribution is called a uniform distribution. A uniform distribution has no clear peaks.

As can been seen shape for child plot is skewed left abd shape for adult plot is approximate symmetric

Center

Graphically, the center of a distribution is located at the median of the distribution. This is the point in a graphic display where about half of the observations are on either side

For child considering values almost equal values present for 1 and 2 while value for 3,4,6 are negligible

Thus center is between 1 to 2

For Adult

center can be approximately concluded as 3

For adult considering values 1,2,3,4,5,6

Spread

The spread of a distribution refers to the variability of the data. If the observations cover a wide range, the spread is larger. If the observations are clustered around a single value, the spread is smaller.

Spread = maximum value - mimimum value

Spread is same for both child and adult plot ranging from 1-6

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