Uses and Misuses of Sample Data

1
Uses and Misuses of Sample Data
Indices
2
Bias can be unintentional

• In other cases, a person could intentionally
  manipulate the data management process in an
  attempt to affect the results.
• This happens in advertising on occasion

3
A companys profit increased from 400.00 to
600.00 per month
4
(No Transcript)
5
TV sales doubled from 2500 to 5000 units.
6
(No Transcript)
7
Number of Bookings at Ski Resorts
year
8
(No Transcript)
9
A valid conclusion is one that is supported by
unbiased data that had been interpreted
appropriately.
10
For you to decide whether a conclusion is valid

• Was there any bias in the data collection?
• Were the measurements accurate?
• Are graphs drawn accurately?

11
Price Indices help citizens, businesses, and
industries follow and predict trends in prices.
12

• The Consumer Price Index is based on thousands of
  price quotations from across the country for a
  basket of about 600 popular consumer goods and
  services.

CPI
13

• BMI (Body Mass Index) is used as a way to measure
  the health of an individual

BMI
14
Pg 2371-12
15
Examples 1,2,and 3 are great resources. pg
225HomeworkPg 2291-12
16
(No Transcript)