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© 2014 Pacific Crest
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Successful Performance
Successful application of your learning looks like this
As you begin to apply what you’ve learned, you should have a good idea of what success looks like.
A SUCCESSFUL
PERFORMANCE
I interpret and explain the data transformations used in a documented research report. I...
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Explain the rationale behind each transformation
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Share the inference that these transformations produce
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Identify additional transformations that can be used effectively
D
emonstrate Your Understanding
Apply it and show you know in context!
Data set files for all of the following problems are available on the companion website
1.
Population
Perform and document each of the following tasks using this data:
a. Create a variable called OVER65s.
b. Find the average population growth rate per year.
c. Show the changes in the age composition of the population graphically.
d. Determine if more women of childbearing age are having children now than in the past.
e.
Challenge:
Determine the effect of net migration on the population of the United States.
2.
Cereals
Story Name
: Healthy Breakfast
Story Topics
: Nutrition, Health
Methods
: Histogram, Scatterplot, Regression
Abstract
: This data file contains nutritional information and grocery shelf location for 77 breakfast
cereals. Current research states that adults should consume no more than 30% of their
calories in the form of fat, they need about 50 grams (women) or 63 grams (men) of
protein daily, and should provide for the remainder of their caloric intake with complex
carbohydrates. One gram of fat contains 9 calories and carbohydrates and proteins contain
4 calories per gram. A “good” diet should also contain 20-35 grams of dietary fiber.
Perform and document each of the following tasks using this data:
a. Group the data by manufacturer.
b. Determine the manufacturer with the best overall diet for their products.
c. Graphically display information about the number of calorie per serving for eachmanufacturer.
d. Determine the relationship between the number of calories per serving and the serving size.
e. Determine if shelf display and sugar content are related.
f.
Challenge:
Group the cereals by type of cereal (wheat, oats, rice) and determine which type
of cereal is best for a low calorie, high fiber diet.