A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n = 30 participants to watch the commercial. First, everyone was given a survey to determine their attitudes toward the company. Then everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the company after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. Which of the following statistical tests should they use? z-Test one-sample t-Test dependent sample t-test

Answer - They should use dependent sample t-test.

Answered: The agency wanted to see if attitudes…

The agency wanted to see if attitudes were changed by the commercial. Which of the following statistical tests should they use? z-Test one-sample t-Test dependent sample t-test

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 11PPS

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Question

A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n = 30 participants to watch the commercial. First, everyone was given a survey to determine their attitudes toward the company. Then everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the company after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. Which of the following statistical tests should they use?

z-Test

one-sample t-Test

dependent sample t-test