TOWNS-i\" ll]. 11. 12. 13. 14. 15. 16. 1?. 18. 19. 3"\" oppos- sosszsssrtamfr S. T. . Null hypothesis Alternative hypothesis Population parameter . Probability of obtaining a sample value at least as extreme as the one observed, assuming that the null hypothesis is true Upper-p critical value Lower-p critical value . Parameter used in the null hypothesis Sample statistic Standard Normal value Sample size Population size One-proportion z-intereval . Number of successes observed in the sample Number of failures observed in the sample Expected number of successes in the sample Expected number of failures in the sample Standard error of the sample proportion Standard deviation of the parameter in a one- proportion z-test Margin of error Z-value in a one-proportion z-test