Peter Noticed That the Nearest Cafe, Where He Had Previously

question 10

Multiple Choice

Peter noticed that the nearest cafe, where he had previously been often, changed the signboard. He decided to find out how this place has changed using a rating from five popular sites. He took the rating of this place under the previous name and now and, after that, he conducted a signed-rank test. The result of this study is a signed-rank sum equal to 11. What can he say about a change in the rating of this place? Use α = 0.10.

• A) The test-statistic is 13, the critical value is 11. Therefore, he cannot reject the null hypothesis and conclude that the rating has remained unchanged.
• B) The test-statistic is 11, the critical value is 13. Therefore, he can reject the null hypothesis and conclude that the rating has changed.
• C) The test-statistic is 11, the critical value is 13. Therefore, he cannot reject the null hypothesis and conclude that the rating has remained unchanged.
• D) The test-statistic is 13, the critical value is 11. Therefore, he can reject the null hypothesis and conclude that the rating has changed.

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Definitions:

Positive Reinforcer

A stimulant that, when presented after a behavior, increases the likelihood of that behavior occurring again.

Positive Reinforcement

Positive Reinforcement is a behavioral principle where the introduction of a pleasant stimulus following a desired behavior increases the likelihood of that behavior being repeated.

Positive Reinforcer

An incentive that, when given following an action, enhances the probability of the action occurring again.

Punisher

An aversive stimulus that, when applied following a behavior, decreases the likelihood of that behavior occurring again in the future.