Electronic Retailers Can Collect Transaction Data for Their Data Warehouse,but

question 9

Multiple Choice

Electronic retailers can collect transaction data for their data warehouse,but they can also collect information by placing cookies on a visitor's hard drive.What is a cookie?

• A)a virus
• B)a frequent shopper reward
• C)text files that identify pirated software
• D)text files that identify visitors when they return to a website
• E)text files used to determine demographic information

---

Definitions:

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a specified level of confidence.

Confidence Level

The percentage of all possible samples that can be expected to include the true population parameter within their estimated range.

Matched-pairs T Procedure

A statistical method used to compare two related samples, such as the same group of individuals measured under two different conditions, to determine if there is a significant difference between them.

Subjects

Individuals or units who participate in a research study or experiment.