lae Student Qurti af/servet/quiz?ctx capri22222-0001&quiz; action takeQuiz&quiz;

Question

lae Student Qurti af/servet/quiz?ctx capri22222-0001&quiz; action takeQuiz&quiz; probGuid QNAPCOA801010000003836e0000100008dk Dr. Nicholas Guegen uses observational methods to study how certain kinds of environmental stimuli innuenoe human behavior. In one study, he manipulated the vo ume or music played in bars to see how it would impad patrons' drinking behaviors. Trained observers recorded the number or swalows taken to finish a drink by several patrons in ts, The sound level was manipulated in both establishmen ts, and all observations occurred over two establishment three Saturday nights. Dr. Guegen used two sound levels in his study: a normal sound level or 72 dB, which is simllar to traffic noise on a busy street, and a louder high-volume level of 88 dB, which is similar to noise from alawn mower. You decide to replicate this study. The null hypothesis is that there is no difference between the mean number of swallows taken to finish a drink among patrons experiencing the high-volume noise level or 88 dB and the mean number of swallows taken to finish a drink among those experiencing the normal noise level of 72 dB The a hypothesis is that there is a difference between the mean number of swallows taken to finish a drink among patrons experiencing the louder noise level of 88 dB and the mean number or swallows taken to finish a drink among those experiencing the normal noise level of 72 dB. Below are the graphs of two possible data sets. The horizontal axes display the number of swallows taken to finish a drink, while the vertical axes display the number of observed patrons who took that number of swallows to finish a drink. Use these graphs to answer the questions that follow High volume as db) High volume db) Normal T2 db) liermal (72 db)

Explanation / Answer

Correct answer: data set A

F-ration is likely to be one, sugges that test for ANOVA

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