This submission is a worksheet with various questions surrounding the topic of statistics and data. The questions on this worksheet are based upon classifications of data and different types of analysis of that data. The final questions have to do with data frequency and a pie chart demonstrating the use of this technique is also included.
¶ … Distinguish between qualitative and quantitative data. Give an example of each.
Qualitative data is information that describes and is subjective in nature. Examples of qualitative data include feelings, opinions and interpretations.
Quantitative data is numerical information that is objective in nature. Examples of quantitative data includes things such as the temperature, time and percentages.
Determine which of the levels of measurement (nominal, ordinal, interval, ratio) is most
Appropriate.
(a) Social Security Numbers- NOMINAL
(b) Consumer Reports magazine ratings of "best buy, recommended, not recommended"- ORDINAL
(c) The numbers on the shirts of the Miami Heat basketball players. - NOMINAL
(d)The weight of people being hurled through the air at an enthusiastic rock concert- RATIO
(e) John, who is different in many ways, measure time in days, with 0 corresponding to his birth date. The day before his birth is -1, the day after his birth is +1, and so on. John has converted the dates of major historical events to his numbering system. What is the measurement of these numbers?
-INTERVAL
3. Identify as either continuous or discreet.
(a) The average height of all freshman entering college in a certain year is 69.8 inches- CONTINUOUS
(b) The number of stories in a North Miami Beach building is 10. - DISCREET
4. Write true or false for each of the sentences below.
(i) The height of a 2-year tree that is 26.9 ft is a discreet number - False
(ii) A political pollster reports that his candidate has a 100% lead in the polls with 10% undecided in an experimental study.- False
(iii) Student's grades A, B, or C, on a test is a nominal number.- False
(iv) A sample of fish taken from a nearby lake to measure the effect of pollution from a nearby factory on fish is an experimental study. True (v) The 1, 675 cars passing a busy intersection in North Miami Beach between 5:00 PM and 6:00 PM is an example of a continuous number. False 5) Identify which of these types of sampling is used: random, stratified, systematic, convenience, cluster.
(i) A researcher selects 500 drivers under 30 years and 500 drivers over 30 years of age.
A) Random
B) Stratified
C) Systematic
D) Convenience
E) Cluster
(ii) A pollster uses a computer to generate 500 random numbers, then interviews the voters corresponding to those numbers.
A) Cluster
B) Stratified
C) Systematic
D) Convenience
E) Random
(iii) An education researcher randomly selects 48 middle schools and interviews all the teachers at each school.
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