A matched sample casecontrol study was performed using, Ask an Expert

Statistics

A matched sample case/control study was performed using cases and controls who have been matched on age and eye color and who all worked for the same chemical company. The cases had been diagnosed with melanoma. The exposure factor being studied was exposure to a chemical. The number of pairs is 80.

Controls Exposed	Cases Exposed
Controls Exposed	Yes	No	Total
Yes	12	16	28
No	23	29	52
Total	35	45	80

(a) Compute chi-square for this matched sample case.

(b) Compute the odds ratio and its 95% confidence limit. Write in words what this odds ratio means and what this confidence limit implies.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92206718

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

The diameters of tennis balls are distributed normally the

The diameters of tennis balls are distributed normally. The mean is 2.7 inches and the standard deviation is 0.3 inches. Find the probability that the diameter of a selected bearing is greater than 3 inches. (Round your ...

The amounts in dollars spent by 20 families for dinner at a

The amounts? (in dollars) spent by 20 families for dinner at a restaurant are given on the right. 22 34 29 45 27 56 26 41 64 62 24 37 62 49 56 32 27 43 66 49 Fill in the correct frequencies in the frequency table based o ...

In a study of helicopter usage and patient survival among

In a study of helicopter usage and patient? survival, among the 55,032 patients transported by? helicopter, 227 of them left the treatment center against medical? advice, and the other 54,805 did not leave against medica ...

The interest rate on one-year treasury bonds is 1 the rate

The interest rate on one-year treasury bonds is 1%, the rate on two-year treasury bonds is 0.9%, and the rate on three-year treasury bonds is 0.8%. Using the expectations theory, compute the expected one-year interest ra ...

A survey reported that 80 of college students had access to

A survey reported that 80% of college students had access to a tablet. In a sample of 200 college students, find the probability that more than 170 had access to a tablet.

What statistic was calculated to determine differences

What statistic was calculated to determine differences between the intervention and control groups for the lumbar and femur neck BMDs? Were the groups significantly different for BMDs?

Consider a hypothesis testing problem where the null and

Consider a hypothesis testing problem where the null and the alternative hypotheses are defined as H0 μ=5 Vs. H1 :μ≠5 H0:μ=5 Vs. H1:μ≠5 A 95% confidence interval for μ was calculated as (2, 7). A) What would be your ...

Let be a random variable with probability

Let be a random variable with probability function f ( x )=144/205 x^ 2 , where x =1,2,3,4. (a) Find the expected value of X (b) Find the expected value of Y =2 X +3

A manufacturer obtains clock-radios from three different

A manufacturer obtains? clock-radios from three different? subcontractors: 10?% from? A, 30?% from? B, and 60?% from C. The defective rates for these subcontractors are 3?%, 2 %, and 5?% respectively. If a defective? clo ...

An egg farmer wanted to determine if increasing the amount

An egg farmer wanted to determine if increasing the amount of time the lights were on in his hand house would increase egg production. For example of 8 chickens he determined the production before and after increasing th ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert