Intro and Data handout S08

Intro and Data handout S08 - STAT E-50 - Introduction to...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: STAT E-50 - Introduction to Statistics Introduction; Displaying Categorical Data 1. The following information appeared in an article in Consumer Reports in June 2003: Name Flavor Price Cal. Protein Carbs Total Fat Sat. Fat Sugars Fiber Quaker Chewy Low Fat Granola Bars Oatmeal Raisin .25 110 1 22 2 0.5 2.5 1 Kudos Milk Chocolate Granola Bars Chocolate Chip .28 130 1 20 5 2.5 3.5 1 Kellogs Nutri- Grain Cereal Bars Blueberry .37 140 2 27 3 0.5 3.5 1 General Mills Milk n Cereal Bars Honey Nut Cheerios .49 160 6 26 4 1.5 4 1 Nature Valley Crunchy Granola Bars Oats n Honey .45 180 4 29 6 0.5 3 2 Which data is categorical? Which data is quantitative? What is missing? Here is another look at this data: Name Flavor Price ($) Cal. Protein (g) Carbs (g) Total Fat (g) Sat. Fat (g) Sugars (tsp) Fiber (g) Quaker Chewy Low Fat Granola Bars Oatmeal Raisin .25 110 1 22 2 0.5 2.5 1 Kudos Milk Chocolate Granola Bars Chocolate Chip .28 130 1 20 5 2.5 3.5 1 Kellogs Nutri- Grain Cereal Bars Blueberry .37 140 2 27 3 0.5 3.5 1 General Mills Milk n Cereal Bars Honey Nut Cheerios .49 160 6 26 4 1.5 4 1 Nature Valley Crunchy Granola Bars Oats n Honey .45 180 4 29 6 0.5 3 2 Page 2 2. In the article Television Viewing and Physical Fitness in Adults ( Research Quarterly for Exercise and Sport (1990): 315-320), the author hoped to determine whether time spent watching television is associated with cardiovascular fitness. 1200 subjects were asked about their television-viewing time (per day, rounded to the nearest hour), and were classified as physically fit if they scored in the Excellent or Very Good category on a step test. a) Identify the Ws: Who? What? When? Where? Why? How? b) Name the variables. Identify each as categorical or quantitative, and identify the units of measurement for the quantitative variables: Page 3 3. Here is the frequency table for the subjects who were physically fit: TV Group Count No TV (0 hours) 35 Low (1 - 2) 101 Moderate (3 - 4) 28 High (5 or more) 4 Total 168 a) Construct a relative frequency table for this data: Relative frequency = frequency n TV Group...
View Full Document

Page1 / 8

Intro and Data handout S08 - STAT E-50 - Introduction to...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online