Advertising effectiveness data

A marketing analyst wants to compare the relative effectiveness of three types of advertising: direct mail, newspaper, and magazine. The analyst performs a randomized block experiment. For 12 clients, the marketing firm used all three types of advertising over a 1-year period and recorded the year's percentage response to each type of advertising.

You can use this data to demonstrate Friedman Test and other analyses that use data from a randomized block design.

Worksheet column Description
Response The effectiveness score (response)
Company The client identification number (blocks)
Advtype The type of print advertising: direct-mail, magazine, or newspaper (treatment)
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