Recent Tutoring Session Reviews
"The student is taking AP statistics and wanted help preparing for a mid-term. She provided study guide questions on binomial distributions and probability. We work through several different examples and also practiced writing up explanations of the results - which is very important! Students are always required to make sense of their findings and restate them in English, so this is important to practice."
"The student and I went through her quiz for this unit. She is feeling more confident and is slowing down to avoid errors."
"We went over the student's quiz on sampling distributions, z-scores, and confidence intervals. She did very well with confidence intervals, especially when we were able to use Excel for confidence intervals. Sampling distributions and z-scores proved to be more difficult, and she should remember the difference between a population and a sampling distribution. A population distribution is graphed in such a way that it includes all of the possible data points for a given event. A sampling distribution occurs when you establish a sample size, such as n=10, and then find the mean for every possible sample of n=10. When those means are graphed, they make up a sampling distribution, where mean=population mean and standard deviation=standard error=sigma/sqrt(n)."
"The student and I covered confidence intervals and hypothesis tests. We went through some formulas, calculator functions, and other concepts such as the critical value, test statistic, and p-values. As usual, we worked from his online material and he worked on some of his homework problems."
"The student and I worked through some problems testing null and alternative hypothesis, interpreting the results, and also identifying values from a statistical output table. We also worked on a problem calculating correlation, coefficient, and variance."
"We went over an entire practice exam. She did most of the talking, which was good - she is getting more confident with the harder topics. The practice test (a previous final) seemed long, so we spent some time talking about strategies to answer questions more quickly. We will meet again tomorrow night."