04-09-2014, 09:02 AM
Two grps of investigators are interested in the problems of esophageal cancer in a population that has a high prevalence oTwo grps of investigators are interested in the problems of esophageal cancer in a population that has a high prevalence of hot beverage consumption. One grp concluded study A, which showed that hot beverage consumption is associated with esophageal cancer, with an odds ratio(OR) of 1.51 and 95% confidence interval of 1.19 to 1.81. The other grp concluded study B, whcih demonstrated and OR of 1.46 and 95% conficdence interval of 0.95 to 1.97. Which of the following is the best statement concerving the results of these two studies?
A. The result of study A is not statistically significant
B. the sample in study B is porrly selected
C. The result in study A is not valid
D. The sample size in study B is small
E. P value in study B is less than 0.95
The answer is D. becasue the OD for grp is not statistically significant because the CI of study B includes 1.increasing the grp size will make the CI tighter.
My q is
even study A is not statistically significant because its CI also includes 1 e:g 1.19 to 1.81 for grp A
could you pls explain it.f hot beverage consumption. One grp concluded study A, which showed that hot beverage consumption is associated with esophageal cancer, with an odds ratio(OR) of 1.51 and 95% confidence interval of 1.19 to 1.81. The other grp concluded study B, whcih demonstrated and OR of 1.46 and 95% conficdence interval of 0.95 to 1.97. Which of the following is the best statement concerving the results of these two studies?
A. The result of study A is not statistically significant
B. the sample in study B is porrly selected
C. The result in study A is not valid
D. The sample size in study B is small
E. P value in study B is less than 0.95
The answer is D. becasue the OD for grp is not statistically significant because the CI of study B includes 1.increasing the grp size will make the CI tighter.
My q is
even study A is not statistically significant because its CI also includes 1 e:g 1.19 to 1.81 for grp A
could you pls explain it.
A. The result of study A is not statistically significant
B. the sample in study B is porrly selected
C. The result in study A is not valid
D. The sample size in study B is small
E. P value in study B is less than 0.95
The answer is D. becasue the OD for grp is not statistically significant because the CI of study B includes 1.increasing the grp size will make the CI tighter.
My q is
even study A is not statistically significant because its CI also includes 1 e:g 1.19 to 1.81 for grp A
could you pls explain it.f hot beverage consumption. One grp concluded study A, which showed that hot beverage consumption is associated with esophageal cancer, with an odds ratio(OR) of 1.51 and 95% confidence interval of 1.19 to 1.81. The other grp concluded study B, whcih demonstrated and OR of 1.46 and 95% conficdence interval of 0.95 to 1.97. Which of the following is the best statement concerving the results of these two studies?
A. The result of study A is not statistically significant
B. the sample in study B is porrly selected
C. The result in study A is not valid
D. The sample size in study B is small
E. P value in study B is less than 0.95
The answer is D. becasue the OD for grp is not statistically significant because the CI of study B includes 1.increasing the grp size will make the CI tighter.
My q is
even study A is not statistically significant because its CI also includes 1 e:g 1.19 to 1.81 for grp A
could you pls explain it.