5 pts The mayor of a remote town wanted to investigate the e

(5 pts) The mayor of a remote town wanted to investigate the effectiveness of advertisements broadcast through the local television channel. More specifically, the mayor wanted to investigate the effect of the length and the repetition of the television advertisements broadcast on the town\'s residents desire to buy a locally manufactured James & Maria brand radio. Eighty residents viewed a 60-minute television program that showed at least one commercial for James & Maria radios during advertisement breaks. Some residents saw a 15-second commercial, some saw a 30-second commercial, others a 60-second commercial. The same commercial was shown two, four, or six times during the program. After the viewing, each resident was asked to rate their craving for a James & Maria radio from the set {\"Don\'t want to buy\", \"Neutral\", \"Want to buy\",\"Need to buy\"}.

Part i) What kind of study is this?

A. An observational study because the study investigator observed the residents

Solution

Part i) What kind of study is this?

B. An experiment because the study investigator controlled the amount of exposure to advertisements the participating residents received.

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Part ii) What is/are the response variable(s) in the study?

E. Craving for a James & Maria radio.

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Part iii) If the investigator would like to compare the distributions of the response variable across different lengths and frequencies of commercials, which of the following displays is appropriate?

A. Histogram

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Part iv) What is/are the factor(s) in the study?

F. Length and frequency of the commercial.

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Part v) How many treatments are there in the study? Enter your answer as a number (e.g. 1), not as text.

3*3=9