2.532.2.51.51.50.50.55 6 7 8 9 1011 12 133.7 9 111315Minutes to Finish a DrinkMinutes to Finish a DrinkNormal (72 db)Normal (72 db)33.52.52.521.51.50.5# 0.55 6 7 8 9 10 11 12 133 5 7 9 111315Minutes to Finish a DrinkMinutes to Finish a DrinkData Set AData Set BWhich data set appears to have more variability between treatments than within treatments?O Data Set AO Data Set BThe data that you collect suggest that the between-treatments variance is small, relative to the within-treatment variance, so the F-ratio for yourstudy is likely to besuggesting 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, hemanipulated the volume of music played in bars to see how it would impact patrons' drinking behaviors. Trained observers recorded the minutes tofinish a drink by several patrons in two establishments. The sound level was manipulated in both establishments, and all observations occurred overthree 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 levelof 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 isa 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 adrink 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 ofobserved 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)43.3.52.522.51.51.510.50.535 7 91113155 6 7 8 9 10 11 12 13Minutes to Finish a DrinkMinutes to Finish a DrinkNormal (72 db)Normal (72 dbl#Patrons Observed#Patrons Observed

Name: 2.532.2.51.51.50.50.55 6 7 8 9 1011 12 133.7 9 111315Minutes to Finis
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Description: 2.532.2.51.51.50.50.55 6 7 8 9 1011 12 133.7 9 111315Minutes to Finish a DrinkMinutes to Finish a DrinkNormal (72 db)Normal (72 db)33.52.52.521.51.50.5# 0.55 6 7 8 9 10 11 12 133 5 7 9 111315Minutes to Finish a DrinkMinutes to Finish a DrinkData Set

Variability within treatment is also know as mean error sum of square. That is the variation caused…

Math

Statistics

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

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

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

Topic Video

Question

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

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