Online sample size calculator (optional) According to the Comptroller of the Currency, sampling is a method of utilizing scarce audit resources when the population of items to be tested is large. Although using knowledge and judgment to select a non-statistical sample is acceptable for many audit ...
Since as noted above we felt that there was an element of probability in our sample and we had no idea of the population, we used a sample size calculator to determine the optimal sample size. The 384 sample size figure was obtained using the formula: n = z2·[p*q]/d2), which is...
7. Perform one sample t-procedures: • by hand (using the calculator only for basic mathematics) using t-tables. • by hand, using the calculator only for basic mathematics and finding areas • using the hypothesis testing features of the TI-83 • using Minitab software Page 42 of ...
Logic of significance testing, null and alternative hypotheses; p-values; one- and two-sided tests; concepts of Type I and Type II errors; concept of power 2. Large sample test for a proportion 3. Large sample test for a difference between two proportions 4. Test for a mean 5. Test ...