4) Let us say we have calculated sampling distribution at a 95% confidence inter

Question

4) Let us say we have calculated sampling distribution at a 95% confidence interval and would like our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can: I. change the z - value to a smaller number. II. take a larger sample. III. take a smaller sample. A. I only B. II only C. III only D. I and II E. I and III

5) At any sampling distribution setting, the standard error of the mean: a) Cannot be larger than the standard deviation of the population b) Getting smaller and smaller as sample size increases c) Used to measure the variability of the mean from sample to sample d) All of the above e) None of the above

Explanation / Answer

4) Let us say we have calculated sampling distribution at a 95% confidence interval and would like our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can: I. change the z - value to a smaller number. II. take a larger sample. III. take a smaller sample. A. I only B. II only C. III only D. I and II E. I and III

5) At any sampling distribution setting, the standard error of the mean: a) Cannot be larger than the standard deviation of the population b) Getting smaller and smaller as sample size increases c) Used to measure the variability of the mean from sample to sample d) All of the above e) None of the above

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