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A study was conducted to explore the possibility of a music treatment effect on sleep quality (better, worse). One version of the study involved 41 truck drivers. The truck drivers were given the option to choose which group they were in. One group listened to music while they slept, while the other group did not. The researchers found a difference of 10.6 percentage points between the proportion of truck drivers in each group who experienced better sleep quality. The group that listened to music had the higher proportion. The tail proportion from a randomisation test carried out with the data from the study was 4/1000.

A study was conducted to explore the possibility of a music treatment effect on sleep quality (better, worse). One version of the study involved 41 truck drivers. The truck drivers were given the option to choose which group they were in. One group listened to music while they slept, while the other group did not. The researchers found a difference of 10.6 percentage points between the proportion of truck drivers in each group who experienced better sleep quality. The group that listened to music had the higher proportion. The tail proportion from a randomisation test carried out with the data from the study was 4/1000.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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A study was conducted to explore the possibility of a music treatment effect on sleep quality (better, worse). One version of the study involved 41 truck drivers.

The truck drivers were given the option to choose which group they were in. One group listened to music while they slept, while the other group did not.

The researchers found a difference of 10.6 percentage points between the proportion of truck drivers in each group who experienced better sleep quality. The group that listened to music had the higher proportion. The tail proportion from a randomisation test carried out with the data from the study was 4/1000.

Use the information above to answer the following questions. In some cases, you will need to copy and paste words exactly as they appear above. Who were the participants in this study? How many participants were used for this study? What was the treatment effect explored? treatment effect What was the level of focus for the categorical response variable? Write the tail proportion as a percentage (rounded to one decimal place e.g. 12.5 or 25.0): % Is the observed difference compatible with the null model? (enter yes or no) Is the observed difference unusual when compared to the 'just chance' distribution? (enter yes or no) Was randomisation used in the design of the study? (enter yes or no)
Transcribed Image Text:Use the information above to answer the following questions. In some cases, you will need to copy and paste words exactly as they appear above. Who were the participants in this study? How many participants were used for this study? What was the treatment effect explored? treatment effect What was the level of focus for the categorical response variable? Write the tail proportion as a percentage (rounded to one decimal place e.g. 12.5 or 25.0): % Is the observed difference compatible with the null model? (enter yes or no) Is the observed difference unusual when compared to the 'just chance' distribution? (enter yes or no) Was randomisation used in the design of the study? (enter yes or no)
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