Laplace, Pierre-Simon, 232

Large numbers, law of, 119

Large-sample confidence interval

• conditions for, 259

• explanation of, 255–256, 258, 369, 371

• for population proportion, 275–279

Large-sample hypothesis test

• conditions for, 348

• about population mean, 323

• about population proportion, 338–342, 453

Large-sample inferences, conditions for, 372, 391, 454

Large samples

• conditions for inferences, 372, 391, 454

• population mean comparisons and, 369–374

Least squares estimate

• explanation of, 507, 518

• formula for, 507

Least squares line, 506–508

Least squares method, 505–510

Least squares prediction equation, 506

Linear regression, simple

• assumptions about probability distribution and, 518–521

• coefficients of correlation and determination and, 532–538

• computer software example of, 551–553

• estimation and prediction and, 510–511, 542–546

• on graphing calculator, 575

• guide to, 565

• inferences about slope β₁, 523–527

• least squares approach and, 505–510

• probabilistic models and, 501–502

• on statistical software programs, 509–511, 526, 527, 537, 538, 551–553, 573–574

Lot acceptance sampling, 220–221

Lower quartile (Q_L), 80