If you want to be 95% confident of estimating the population mean to within a sampling error of +/- 5 and the standard deviation is assumed to be 15, what sample size is required? Z value of 95% confidence is 1.96
If you want to be 95% confident of estimating the population mean to within a sampling error of +/- 5 and the standard deviation is assumed to be 15, what sample size is required? Z value of 95% confidence is 1.96
If you want to be 95% confident of estimating the population mean to within a sampling error of +/- 5 and the standard deviation is assumed to be 15, what sample size is required? Z value of 95% confidence is 1.96
If you want to be 95% confident of estimating the population mean to within a sampling error of +/- 5 and the standard deviation is assumed to be 15, what sample size is required? Z value of 95% confidence is 1.96
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
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