Question

Researchers wanted to study if wearing cotton clothes is related to depression. They surveyed a large...

Researchers wanted to study if wearing cotton clothes is related to depression. They surveyed a large group of people. The data are shown in the contingency table below. What is the relative risk of wearing cotton clothes for those who are depressed? Round your answer to two decimal places.

CottonNot cottonTotalDepressed122420542Not depressed189263452Total311683994

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The data is as shown in the below table:

Cotton Not cotton Total
Depressed 1224 20542 21766
Not Depressed 1892 63452 65344
Total 3116 83994 87110

The formula for relative risk of wearing cotton clothes for those who are depressed is:

Here, being depressed or not depressed is the predictor variable and wearing cotton clothes or not is the outcome

RR = (1224/21766)/(1892/65344) = 1.942

The relative risk is 1.942

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the...
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsible for​ long-term memory​ storage, in adolescents. The researchers randomly selected 20 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x =8.03 cm3 and s=0.8 cm3. Conduct the appropriate...
Apparently, depression significantly increases the risk of developing dementia later in life (BBC News, July 6,...
Apparently, depression significantly increases the risk of developing dementia later in life (BBC News, July 6, 2010). In a recent study it was reported that 22% of those who had depression went on to develop dementia, compared to only 17% of those who did not have depression. Suppose 10% of all people suffer from depression. a. What is the probability of a person developing dementia? (Do not round intermediate calculations. Round your answer to 3 decimal places.) b. If a...
1) Researchers wanted to see if people who exercise regularly sleep better than people who don't....
1) Researchers wanted to see if people who exercise regularly sleep better than people who don't. They took a random sample of adult males and surveyed them about their exercise routine and their sleep duration. Is there a statistically significant difference of quality of sleep between those who exercise and those who don’t? Summarized data are seen below. Conduct a hypothesis test and construct a 95% confidence interval for the population difference. Sample Mean Exercise 7.2 hrs; Sample Mean No...
The manufacturer of a new antidepressant claims that, among all people with depression who use the...
The manufacturer of a new antidepressant claims that, among all people with depression who use the drug, the proportion p of people who find relief from depression is at least 80%. A random sample of 205 patients who use this new drug is selected, and 160 of them find relief from depression. Based on these data, can we reject the manufacturer's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your...
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the...
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsible for​ long-term memory​ storage, in adolescents. The researchers randomly selected 19 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm cubed^3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x overbarxequals=8.11 cm cubedcm3 and sequals=0.7 cm cubedcm3....
Coffee and Depression. Researchers conducted a study investigating the relationship between caffeinated coffee consumption and risk...
Coffee and Depression. Researchers conducted a study investigating the relationship between caffeinated coffee consumption and risk of depression in women. They collected data on 50,739 women free of depression symptoms at the start of the study in the year 1996, and these women were followed through 2006. The researchers used questionnaires to collect data on caffeinated coffee consumption, asked each individual about physician- diagnosed depression, and also asked about the use of antidepressants. The table below shows the distribution of...
Researchers wants to know if taking the herbal supplement St. John's Wort will affect depression. First,...
Researchers wants to know if taking the herbal supplement St. John's Wort will affect depression. First, they measure the depression level of a sample of n = 4 depressed people (Pre-Test Scores). Then after a week of taking St. John's Wort, they again measure the sample's depression levels (Post-Test Scores). Note that high scores on the depression measure indicate more depression, whereas low scores indicate less depression. Participant Pre-Test Scores Post-Test Scores A 9 6 B 12 5 C 13...
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the...
In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsible for​ long-term memory​ storage, in adolescents. The researchers randomly selected 11 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02cm^3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x overbarxequals=8.18cm^3 and sequals=0.7cm ^3. Conduct the...
14)In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the...
14)In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsible for​ long-term memory​ storage, in adolescents. The researchers randomly selected 24 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm cubed. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x overbarequals8.05 cm cubed and sequals0.7 cm cubed....
Researchers conducted a study to determine whether magnets are effective in treating back pain. The results...
Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment​ (with magnets) group and the sham​ (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed​ populations, and do not assume that the population standard deviations are equal. Complete parts​ (a) and​ (b) below. treatment sham m m1 m2...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT