Which data set appears to have more variability between treatments than within treatments? O Data Set A O Data Set B The data that you collect suggest that the between-treatments variance is small, relative to the within-treatment variance, so the F-ratio for your suggesting that study is likely to be

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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2.5
3
2.
2.5
1.5
1.5
0.5
0.5
5 6 7 8 9 10
11 12 13
3.
7 9 11
13
15
Minutes to Finish a Drink
Minutes to Finish a Drink
Normal (72 db)
Normal (72 db)
3
3.5
2.5
2.5
2
1.5
1.5
0.5
# 0.5
5 6 7 8 9 10 11 12 13
3 5 7 9 11
13
15
Minutes to Finish a Drink
Minutes to Finish a Drink
Data Set A
Data Set B
Which data set appears to have more variability between treatments than within treatments?
O Data Set A
O Data Set B
The data that you collect suggest that the between-treatments variance is small, relative to the within-treatment variance, so the F-ratio for your
study is likely to be
suggesting that
# Patrons Obserw
#Patrons Observed
# Patrons Observed
#Patrons Observe
Transcribed Image Text:2.5 3 2. 2.5 1.5 1.5 0.5 0.5 5 6 7 8 9 10 11 12 13 3. 7 9 11 13 15 Minutes to Finish a Drink Minutes to Finish a Drink Normal (72 db) Normal (72 db) 3 3.5 2.5 2.5 2 1.5 1.5 0.5 # 0.5 5 6 7 8 9 10 11 12 13 3 5 7 9 11 13 15 Minutes to Finish a Drink Minutes to Finish a Drink Data Set A Data Set B Which data set appears to have more variability between treatments than within treatments? O Data Set A O Data Set B The data that you collect suggest that the between-treatments variance is small, relative to the within-treatment variance, so the F-ratio for your study is likely to be suggesting that # Patrons Obserw #Patrons Observed # Patrons Observed #Patrons Observe
Dr. Nicholas Guegen uses observational methods to study how certain kinds of environmental stimuli influence human behavior. In one study, he
manipulated the volume of music played in bars to see how it would impact patrons' drinking behaviors. Trained observers recorded the minutes to
finish a drink by several patrons in two establishments. The sound level was manipulated in both establishments, and all observations occurred over
three Saturday nights. Dr. Guegen used two sound levels in his study: a normal sound level of 72 dB, which is similar to traffic noise on a busy street,
and a louder high-volume level of 88 dB, which is similar to noise from a lawn mower. You decide to replicate this study.
The null hypothesis is that there is no difference between the mean minutes to finish a drink among patrons experiencing the high-volume noise level
of 88 dB and the mean minutes to finish a drink among those experiencing the normal noise level of 72 dB. The alternative hypothesis is that there is
a difference between the mean minutes to finish a drink among patrons experiencing the louder noise level of 88 dB and the mean minutes 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 minutes to finish a drink, while the vertical axes display the number of
observed patrons who took that many minutes to finish a drink. Use these graphs to answer the questions that follow.
High Volume (88 db)
High Volume (88 db)
4
3.
3.5
2.5
2
2.5
1.5
1.5
1
0.5
0.5
3
5 7 9
11
13
15
5 6 7 8 9 10 11 12 13
Minutes to Finish a Drink
Minutes to Finish a Drink
Normal (72 db)
Normal (72 dbl
#Patrons Observed
#Patrons Observed
Transcribed Image Text:Dr. Nicholas Guegen uses observational methods to study how certain kinds of environmental stimuli influence human behavior. In one study, he manipulated the volume of music played in bars to see how it would impact patrons' drinking behaviors. Trained observers recorded the minutes to finish a drink by several patrons in two establishments. The sound level was manipulated in both establishments, and all observations occurred over three Saturday nights. Dr. Guegen used two sound levels in his study: a normal sound level of 72 dB, which is similar to traffic noise on a busy street, and a louder high-volume level of 88 dB, which is similar to noise from a lawn mower. You decide to replicate this study. The null hypothesis is that there is no difference between the mean minutes to finish a drink among patrons experiencing the high-volume noise level of 88 dB and the mean minutes to finish a drink among those experiencing the normal noise level of 72 dB. The alternative hypothesis is that there is a difference between the mean minutes to finish a drink among patrons experiencing the louder noise level of 88 dB and the mean minutes 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 minutes to finish a drink, while the vertical axes display the number of observed patrons who took that many minutes to finish a drink. Use these graphs to answer the questions that follow. High Volume (88 db) High Volume (88 db) 4 3. 3.5 2.5 2 2.5 1.5 1.5 1 0.5 0.5 3 5 7 9 11 13 15 5 6 7 8 9 10 11 12 13 Minutes to Finish a Drink Minutes to Finish a Drink Normal (72 db) Normal (72 dbl #Patrons Observed #Patrons Observed
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