One-Sample Z-Test for the Population Mean

Practice one-sample Z-tests for a population mean with known standard deviation. Calculate signed statistics, critical sample-mean thresholds, one- and two-sided p-values, alternative distributions and sample sizes for target power. Diagnose serial dependence, transported calibration assumptions and practically small effects. Prerequisites: normal distributions, sampling variability and basic hypothesis testing. Includes single-select and multiselect practice with worked solutions and explanations of distractors.

References: 7.1.5 Test and confidence interval correspondence, 7.2.2.2 One-sided sample size formula, 1.3.5.2 Mean limits and hypothesis test.