1. Unit 1 Section 1-6

2. 1-6: Uses and Misuses of Statistics  Suspect Samples:  Is the sample size large enough?  How was the sample selected?  Is there a built-in-bias?  Was the sample a convenience sample or a volunteer sample?  For example :  “Three out of four doctors recommend using _______”

3. Section 1-6  Ambiguous Averages :  There are four types of measures that are commonly used as “averages:”  Mean  Median  Mode  Midrange  These values can vary greatly, therefore can change data.  Changing the Subject:  Using different values to represent the same data.  For Example :  Obama might say “During my administration, expenditures increased 3%.”  Romney might say “During my opponent’s administration, expenditures increased $6,000,000.”

4. Section 1-6  Detached Statistics :  A claim where no comparison is made.  For example :  “Our product has ½ the calories”  Implied Connections:  A claim that attempts to imply connections between two variables that may not actually exist.  For example :  “Eating vegetables daily may help reduce your cholesterol.”

5. Section 1-6  Misleading Graphs :  If graphs are drawn inappropriately, they can misrepresent the data.  Misrepresented data can lead a reader to false conclusions.  Faulty Survey Questions:  A researcher needs to ensure that questions are properly written since the way questions are phrased can often influence the way people answer them.  For Example:  “Should Eastern have air-conditioned classrooms?”  “Should taxes be increased to all homeowners in order to air-condition classrooms at Eastern?”

6.  Complete pgs. 27-28  #’s 20 - 29  Complete pg. 29  #’s 12, 13, 20 Homework