Lessons for Topic 4.2
Conditions for one meanA random sample, small against the population, from a population that is normal or a sample large enough.Lesson
One sample interval for a mean and sample sizeEstimating a population average as the sample average give or take a margin of error.Lesson
Paired data: interval and test for a mean differenceTwo measurements linked on the same individual or matched pair, reduced to one column of differences.Lesson
The t distribution and degrees of freedomA bell shape with heavier tails than the normal, used when the population spread is estimated from the sample.Lesson