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Study 1 Seventy five students volunteered to participate in a study comparing the effects Rockstar and Red Bull on pulse rates. Twenty-Five students were randomly assigned to one of the three treatments (Rockstar, Red Bull, Water). For each student, the change in pulse rate was measured after consuming eight ounces of the treatment beverage. 1. Is the design of this study experimental or observational? Explain. 2. Upon completion of the study, researchers reported that the difference between Red Bull drinkers and Rockstar Drinkers with respect to change in pulse rate was statistically significant. Red Bull drinkers had a higher increase in pulse rate. Does the design of this study allow the researchers to suggest that drinking Red Bull increases your pulse rate more than Rockstar? Explain why or why not. Study 2 In March 2021 the medical records of 1446 patients seeking treatment for positive COVID-19 at 4 different sites were reviewed to determine how vaccination status is related to the severity of their illness. The records showed some patients were vaccinated and some were not. Also, the records showed that some patients needed to be hospitalized and some did not. 3. Is the design of this study experimental or observational? Explain. 4. Upon completion of the study in May 2021, researchers reported that the difference between hospitalizations was HIGHER among those who are vaccinated than those who were not (38.2% versus 27.4%). Does the design of this study allow the researchers to suggest that getting vaccinated increases your chances of needing to be hospitalized? Explain why or why not.

Study 1 Seventy five students volunteered to participate in a study comparing the effects Rockstar and Red Bull on pulse rates. Twenty-Five students were randomly assigned to one of the three treatments (Rockstar, Red Bull, Water). For each student, the change in pulse rate was measured after consuming eight ounces of the treatment beverage. 1. Is the design of this study experimental or observational? Explain. 2. Upon completion of the study, researchers reported that the difference between Red Bull drinkers and Rockstar Drinkers with respect to change in pulse rate was statistically significant. Red Bull drinkers had a higher increase in pulse rate. Does the design of this study allow the researchers to suggest that drinking Red Bull increases your pulse rate more than Rockstar? Explain why or why not. Study 2 In March 2021 the medical records of 1446 patients seeking treatment for positive COVID-19 at 4 different sites were reviewed to determine how vaccination status is related to the severity of their illness. The records showed some patients were vaccinated and some were not. Also, the records showed that some patients needed to be hospitalized and some did not. 3. Is the design of this study experimental or observational? Explain. 4. Upon completion of the study in May 2021, researchers reported that the difference between hospitalizations was HIGHER among those who are vaccinated than those who were not (38.2% versus 27.4%). Does the design of this study allow the researchers to suggest that getting vaccinated increases your chances of needing to be hospitalized? Explain why or why not.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 42PFA
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Study 1 Seventy five students volunteered to participate in a study comparing the effects Rockstar and Red Bull on pulse rates. Twenty-Five students were randomly assigned to one of the three treatments (Rockstar, Red Bull, Water). For each student, the change in pulse rate was measured after consuming eight ounces of the treatment beverage. 1. Is the design of this study experimental or observational? Explain. 2. Upon completion of the study, researchers reported that the difference between Red Bull drinkers and Rockstar Drinkers with respect to change in pulse rate was statistically significant. Red Bull drinkers had a higher increase in pulse rate. Does the design of this study allow the researchers to suggest that drinking Red Bull increases your pulse rate more than Rockstar? Explain why or why not. Study 2 In March 2021 the medical records of 1446 patients seeking treatment for positive COVID-19 at 4 different sites were reviewed to determine how vaccination status is related to the severity of their illness. The records showed some patients were vaccinated and some were not. Also, the records showed that some patients needed to be hospitalized and some did not. 3. Is the design of this study experimental or observational? Explain. 4. Upon completion of the study in May 2021, researchers reported that the difference between hospitalizations was HIGHER among those who are vaccinated than those who were not (38.2% versus 27.4%). Does the design of this study allow the researchers to suggest that getting vaccinated increases your chances of needing to be hospitalized? Explain why or why not.
Transcribed Image Text:Study 1 Seventy five students volunteered to participate in a study comparing the effects Rockstar and Red Bull on pulse rates. Twenty-Five students were randomly assigned to one of the three treatments (Rockstar, Red Bull, Water). For each student, the change in pulse rate was measured after consuming eight ounces of the treatment beverage. 1. Is the design of this study experimental or observational? Explain. 2. Upon completion of the study, researchers reported that the difference between Red Bull drinkers and Rockstar Drinkers with respect to change in pulse rate was statistically significant. Red Bull drinkers had a higher increase in pulse rate. Does the design of this study allow the researchers to suggest that drinking Red Bull increases your pulse rate more than Rockstar? Explain why or why not. Study 2 In March 2021 the medical records of 1446 patients seeking treatment for positive COVID-19 at 4 different sites were reviewed to determine how vaccination status is related to the severity of their illness. The records showed some patients were vaccinated and some were not. Also, the records showed that some patients needed to be hospitalized and some did not. 3. Is the design of this study experimental or observational? Explain. 4. Upon completion of the study in May 2021, researchers reported that the difference between hospitalizations was HIGHER among those who are vaccinated than those who were not (38.2% versus 27.4%). Does the design of this study allow the researchers to suggest that getting vaccinated increases your chances of needing to be hospitalized? Explain why or why not.
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