A screening study is performed to determine the prevalence of colon caner in 100

Question

A screening study is performed to determine the prevalence of colon caner in 10000 subjects in a rural community. Researchers are examining the efficacy between a fecal occult blood stool sampling and a colonoscopy. The two tailed test with a p value of 0.025 and a 95% confidence interval indicates that the colonoscopy screening profides a higher rate of early detetion. Reseracher have found the allowing the participant to select the screening test did not affect the finding compared to previous results. How does the sample size affect this report. chose 2 answers. 1) the sample size is adequate for generalizability to the population. 2)The sample size is too large to handle the poplulation effectively. 3) the sample size is too small for the population to study. 4)The sample size is large enough to show statistical significance.

Explanation / Answer

Solution:-

1) The sample size is adequate for generalizability to the population.

4) The sample size is large enough to show statistical significance.

When conducting research, quality sampling may be characterized by the number and selection of subjects or observations. Obtaining a sample size that is appropriate in both regards is critical for many reasons. Most importantly, a large sample size is more representative of the population, limiting the influence of outliers or extreme observations. A sufficiently large sample size is also necessary to produce results among variables that are significantly different.For qualitative studies, where the goal is to “reduce the chances of discovery failure,” a large sample size broadens the range of possible data and forms a better picture for analysis.

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