STA 2023 Lecture Notes - Lecture 47: Analysis Of Variance
Document Summary
Chapter 11 lecture activity: a biology professor reports that historically grades in her introductory biology course have been distributed as follows: (cid:883)(cid:887)% a"s, (cid:885)(cid:882)% b"s, (cid:886)(cid:882)% c"s, (cid:883)(cid:882)% d"s, and f"s. Grades in her most recent course were distributed as follows: 89: state the hypotheses and identify the claim distribution matches the historical distribution. Test an appropriate hypothesis to decide if the professor"s most recent grade. Ho: the professor"s most recent grades distribution matches the. H(cid:883): the professor"s most recent grade distribution doe not match the historical distribution historical distribution: compute the test value. Since 0. 000000<0. 05, we reject ho: summarize the results. 331 alpha=0. 05: state the hypotheses and identify the claim. Ho: there is not relationship between whether a student is female or male that eats breakfast. H1: there is a relationship between the number of female or male students eat breakfast or not: compute the test value. X^2= 5. 339: find the p-value p-value=0. 0209, make the decision.
