PPT-ANOVA: Graphical Cereal Example: nknw677.sas

Y number of cases of cereal sold CASES X design of the cereal package PKGDES r 4 there were 4 designs tested n i 5 5 4 5 one store had a fire n T 19 Cereal Example input. NR 245. Austin Troy. Based primarily on material accessed from Garson, G. David 2010. . Univariate GLM, ANOVA, and ANCOVA. . Statnotes. : Topics in Multivariate Analysis.. http://faculty.chass.ncsu.edu/garson/PA765/statnote.htm. Front of Box. Include the name of the cereal and a picture. . Invent . a name for . the cereal . that is related to the title of the book and sounds like a cereal. . Do . not use the exact title of . Analysis of Variation. Math 243 Lecture. R. Pruim. The basic ANOVA situation. Two variables: 1 Categorical, 1 Quantitative. Main Question: Do the (means of) the quantitative variables depend on which group (given by categorical variable) the individual is in?. (a.k.a. Analysis of Variance). 1. Outline:. Testing for a difference. in means. Notation. Sums of squares. Mean. squares. The. F distribution. The. ANOVA table. Part II: multiple. comparisons. Worked example. Trying different tests on cereal . starch test . 1. st. I took cereal, mashed it into a powder and put it in a test tube . 2. nd. I put water and iodine solution and mixed it together . 3. rd. I put a little water into it. Analysis of Variance. Let’s say we conduct this experiment: effects of alcohol on memory. Basic Design. Grouping variable . (IV, manipulation) with . 2 or more levels. Continuous dependent/criterion variable. Front of Box. Include the name of the cereal and a picture. . Invent . a name for . the cereal . that is related to the title of the book and sounds like a cereal. . Do . not use the exact title of . Shina Peng. Cereal Box. Height: 22.2 cm. Width: 13.7 cm. Base: 13.7 cm. Side: 4.2 cm. Area:. Equation: B x H x 2= Area. 22.2 cm x 13.7 cm x 2 = . 608.28 cm. 2. 22.2 cm. 13.7 cm. Mini Model. Ratio: 1:3. Box. Look in most homes and you will find a box of cereal. . Cereal . is a unique product and has become an integral component of popular culture.. Cereal Box Design:. But the actual cereal itself usually looks kind of GROSS! . The . Multivariate. Approach. One-Way. Cross-Species-Fostering. House mice onto house mice, prairie deer mice, or domestic Norway rats.. After weaning, tested in apparatus with access to tunnels scented like clean pine shavings, house mouse, deer mouse, or rat.. LM ANOVA 2. 2. Example -- Background. Bacteria -- effect . of temperature (10. o. C & 15. o. C) and relative humidity (20%, 40%, 60%, 80%) on growth rate (cells/d. ).. 120 . petri . dishes with a growth . ANOVA: Graphical Cereal Example: nknw677.sas Y = number of cases of cereal sold (CASES) X = design of the cereal package (PKGDES) r = 4 (there were 4 designs tested) n i = 5, 5, 4, 5 (one store had a fire) ANOVA is comparison of means. Each possible value of a factor or combination of factor is a treatment.. The ANOVA is a powerful and common statistical procedure in the social sciences. It can handle a variety of situations.. ANOVA makes assumptions about error for significance tests. What are the assumptions?. What might happen (why would it be a problem) if the assumption of {normality, equality of error, independence of error} turned out to be false?.