Publications by Laboratory Exercise No. 5
Stat 221 ANOVA Additional Examples
One-way ANOVA The table below shows the scores on the first quiz (maximum score 10 points) in a beginning French course. Students in the course are grouped as follows: Group A: Never studied foreign language before, but have good English skills. Group B: Never studied foreign language before; have poor English skills. Group C: Studied other ...
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Stat 137- Quiz No. 1
Describe completely using simple terms what the following code chunk does. (10 pts.) parcel %>% select(CITY_DECODE, DESIGN_STYLE_DECODE) %>% drop_na(c(CITY_DECODE,DESIGN_STYLE_DECODE)) %>% filter(DESIGN_STYLE_DECODE == "Townhouse") %>% group_by(CITY_DECODE) %>% summarize(count = n()) %>% filter(count > 1000) %>% muta...
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Expected Mean Squares
Steps in Deriving Expected Mean Squares Prepare a two way table with the terms of the model as the row labels. Write the subscripts in the model as column headings. Over each subscript, write the number of levels of the factors associated with that subscript and whether the factor is fixed (F) or random (R). Replicates are always treated as ...
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PISA 2018 Supplementary Files
READING PROFICIENCY LEVELS \(\textbf{Level 6}\): Readers at Level 6 can comprehend lengthy and abstract texts in which the information of interest is deeply embedded and only indirectly related to the task. They can compare, contrast and integrate information representing multiple and potentially conflicting perspectives, using multiple crit...
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STAT 137 Final Project
INSTRUCTIONS: Prepare your report in R Markdown. Save it either in PDF or html format. In case, you opted for html, upload your html report in Rpubs.com and attach the link of the document in the VSUEE portal. Make sure to make all graphics as elegant and informative as possible. Apply everything that we have discussed in class in order to ...
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Stat 141- Post hoc analysis of significant interaction
Remarks Recall that when the interaction effect is significant, the effect of one factor is dependent on the other factor When the interaction effect is significant, the main effects are no longer sensible Thus, in the presence of significant interaction effect, we do post test of the levels of one factor at each (fixed) level of the other f...
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