A study showed that the relative risk of showing up late for class for "Group A"...
A study showed that the relative risk of showing up late for class for "Group A" students as compared to "Group B" students was 3.45. The increased risk is __________ .
Group of answer choices
1.45
2.45
0
3.45
4.45
Homework Answers
Ans:
Correct option is:
2.45
As,risk for showing up late for class for Group A is 3.45 times as compared to Group B,
.
Add Answer to:
A study showed that the relative risk of
showing up late for class for "Group A"...
11. A large international study of risk factors for heart attack showed that a. workplace stress...
11. A large international study of risk factors for heart attack showed that a. workplace stress was the only type of stress that predicted heart attack. b. several demographic factors were related to heart attack but no psychosocial factors. c. several types of stress were related to increased risk for heart attack. d. None of the above.
One of your teachers tells your class that skipping class often can lead to dire consequences....
One of your teachers tells your class that skipping class often can lead to dire consequences. He says that data from his previous classes show that students who often skip class have twice the risk of failing compared to students who attend regularly, even though class attendance and participation are not part of the grade. (a) What term from this chapter applies to the phrase "twice the risk?" baseline risk odds ratio relative risk (b) Give two reasons why the...
Previous study showed that the average expenditure per student for a certain year was $10,000 with...
Previous study showed that the average expenditure per student for a certain year was $10,000 with population standard deviation of $2,500. Thomas argues that the average expenditure has changed (i.e. the average expenditure is NOT equal to $10,000). He finds that a survey of 100 randomly selected University students resulted in a sample mean of $10,500. Using this sample statistics, John tries to test his argument with α = .05. Which is correct null hypothesis? Group of answer choices H0: µ = 10,500...
help Consider the following data from a study examining the relationship between smoking behaviour and 20-year...
help
Consider the following data from a study examining the relationship between smoking behaviour and 20-year survival status of 1314 women (Appleton et al. 1996). Status after 20 years Dead Alive Smoker 139 443 Non-smoker 230 502 Total 369 945 Total 582 732 1314 (a) Determine each of the following: (i) The percentage of the smoker group who died in 20 years. (ii) The proportion of the non-smoker group who died in 20 years. (iii) The risk of death for...
In one research study, half of a class was told to watch 1 hour of television...
In one research study, half of a class was told to watch 1 hour of television each day. The other half of the class was instructed to watch 5 hours of television each day. Afterwards, the average grades for each half of a class were compared with each other. In a second research study, all the students of a class gave their responses to a set of questions that asked about their television viewing habits and also about their grades...
In late February, the US National Institutes of Health (NIH) announced that a new study to...
In late February, the US National Institutes of Health (NIH) announced that a new study to evaluate the safety and efficacy of the antiviral drug remdesivir in hospitalized adults diagnosed with COVID-19 had begun at the University of Nebraska Medical Center (UNMC) in Omaha. Participants in the NIH-sponsored study must be hospitalized for lab-confirmed COVID-19, provide informed consent to participate in the study, and undergo a baseline physical exam before receiving treatment. They will then be randomly assigned either to...
1. A Swedish study considered the effect of low-dose aspirin on reducing the risk of stroke...
1. A Swedish study considered the effect of low-dose aspirin on reducing the risk of stroke and heart attacks among people who have already suffered a stroke (Lancet 338: 1345-1349 (1991)). Of 1360 patients, 676 were randomly assigned to the aspirin treatment (one low-dose tablet a day) and 684 to a placebo treatment. During a follow-up period averaging about three years, the number of deaths due to myocardial infarction were 18 for the aspirin group and 28 for the placebo...
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing...
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing the coronary death compared to placebo. Patients were randomized into two groups at 1:2 ratio. Of 1065 subjects in the treatment group, 194 died at 5 years, whereas 523 of 2695 subjects in the placebo group died at 5 years. Answer these questions: a) what is the study design? b) generate a 2 by 2 table, c) calculate the crude mortality rates for both...
7. *(1 point) A study assessed the association between stress related disorders and subsequent risk of...
7. *(1 point) A study assessed the association between stress related disorders and subsequent risk of cardiovascular disease using a population-based, sibling cohort study. In sibling-based comparisons, individuals with a stress related disorder had 64% higher risk of cardiovascular disease as compared to their sibling without a stress disorder (RR = 1.64; 95% confidence interval, 1.45 to 1.84). The researchers also performed a hypothesis test. The null hypothesis and alternative hypothesis were Null hypothesis: There is no difference in the...
9. When you desire to study the effects of a rare exposure on a disease using...
9. When you desire to study the effects of a rare exposure on a disease using observational methods, you would optimally employ the type of study design. Remember you would likely need to conduct your study in a place where the exposure occurs. cohort b ase-control 10. Another name for a retrospective study is an) study b. cohort e experimental 11. You have completed a year long study of the effectiveness of a reading program among second graders. At the...
One of your teachers tells your class that skipping class often can lead to dire consequences. He says that data from his previous classes show that students who often skip class have twice the risk of failing compared to students who attend regularly, even though class attendance and participation are not part of the grade. (a) What term from this chapter applies to the phrase "twice the risk?" baseline risk odds ratio relative risk (b) Give two reasons why the...
help
Consider the following data from a study examining the relationship between smoking behaviour and 20-year survival status of 1314 women (Appleton et al. 1996). Status after 20 years Dead Alive Smoker 139 443 Non-smoker 230 502 Total 369 945 Total 582 732 1314 (a) Determine each of the following: (i) The percentage of the smoker group who died in 20 years. (ii) The proportion of the non-smoker group who died in 20 years. (iii) The risk of death for...
1. A Swedish study considered the effect of low-dose aspirin on reducing the risk of stroke and heart attacks among people who have already suffered a stroke (Lancet 338: 1345-1349 (1991)). Of 1360 patients, 676 were randomly assigned to the aspirin treatment (one low-dose tablet a day) and 684 to a placebo treatment. During a follow-up period averaging about three years, the number of deaths due to myocardial infarction were 18 for the aspirin group and 28 for the placebo...
2. A study was conducted to test the effect of a new drug (Clofibrate) on reducing the coronary death compared to placebo. Patients were randomized into two groups at 1:2 ratio. Of 1065 subjects in the treatment group, 194 died at 5 years, whereas 523 of 2695 subjects in the placebo group died at 5 years. Answer these questions: a) what is the study design? b) generate a 2 by 2 table, c) calculate the crude mortality rates for both...
7. *(1 point) A study assessed the association between stress related disorders and subsequent risk of cardiovascular disease using a population-based, sibling cohort study. In sibling-based comparisons, individuals with a stress related disorder had 64% higher risk of cardiovascular disease as compared to their sibling without a stress disorder (RR = 1.64; 95% confidence interval, 1.45 to 1.84). The researchers also performed a hypothesis test. The null hypothesis and alternative hypothesis were Null hypothesis: There is no difference in the...
9. When you desire to study the effects of a rare exposure on a disease using observational methods, you would optimally employ the type of study design. Remember you would likely need to conduct your study in a place where the exposure occurs. cohort b ase-control 10. Another name for a retrospective study is an) study b. cohort e experimental 11. You have completed a year long study of the effectiveness of a reading program among second graders. At the...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago