Recent Tutoring Session Reviews
"The student is taking introductory statistics and wanted help preparing for a final exam. We went over the steps of hypothesis testing, and how to look up p-values in the standardized table. We discussed calculating the probability of dice throws and how to determine outliers based on IQR."
"The student worked on his assignment on chi-squares, ANOVAs, and binomial probabilities. We discussed how to find expected values for chi-square goodness-of-fit tests, how to find the critical region for chi-squares, and how to tell the difference between one-tailed tests and two-tailed tests. It was nice working with him and I hope his test went well!"
"We covered comparing two sample proportions. The student seemed to be comfortable with the overall material, and was able to explain the steps to comparing two sample proportions and did not have a lot of questions. The student was also able to identify the difference between one-sample and comparing two proportion problems. He is confident that he would do well in tomorrow's exam, which I too believe he would do well on. The only minor confusion the student was having was determining whether or not there is significance on data based on p-value and level of significance. After going over a few of his homework problems, he became more familiarized and confident."
"We covered more of the t-test. The student is doing really well in most aspects of this statistical analysis. He is struggling with figuring out the H0 and Ha. However, I think he is getting the hang of it, and by tomorrow should be able to have it mastered."
"The student needed some help finishing a class project involving ANOVA inference tests. We worked on how to calculate the necessary parts of the F-ratio. We also worked on calculating effect size and post hoc analysis (Tukey's HSD) for significant results. I also worked on helping her use a software package (STATPLUS) to perform an ANOVA test. Lastly, I helped her learn how to interpret the p-value, effect size, and Tukey's HSD results in context to the problem."
"Today I lectured on histograms and the student asked a few questions regarding calculating confidence intervals."