Recent Tutoring Session Reviews
"Concepts covered with the student were coefficient of correlation, coefficient of determination, single regression, multiple regression, residuals, binary variables, t-ratio, and the degrees of freedom for multiple regression."
"During this session, we reviewed a variety of statistical concepts in preparation for tomorrow's test. As we reviewed previous tests, we discussed how to determine the probabilities of events given a Poisson, binomial, uniform, or normal distribution. I clarified the differences in the nature of each type of distribution and how to use their respective tables to determine probabilities. The student practiced using the tables in reviewing missed test items. We also reviewed the general hypothesis testing steps and how to recognize what statistical test a given scenario called for."
"I ended up doing a double session with the student since she is working on her final and the last thing needed for her class. We are going to continue a little later today so I have time to look over a few of the questions that we still have left to cover. We have done everything from five number summaries to normal distributions. The last things we covered were confidence intervals for proportions. We still have one or two more left with confidence intervals and then a few with other distributions. I hope to have everything prepared for the rest of the questions before we start our next session."
"I helped the student understand how to identify problems involving normal approximations of binomial distributions, how to distinguish between problems requiring use of Z-tables and t-tables, and how to perform one-tailed tests with Z-tables. I also explained how all of these problems were basically just variations on the idea of converting distances between normal units and number of standard deviations. After that, I went through many problems with her, until she was able to do them without help. She understood most of it quickly."
"I taught the student how to use the combination formula, as well as went specifically through each part of the sampling distribution of the mean (mean, standard deviation, and frequency). In addition, we went over z-scores and determining when to reject or accept the null hypothesis. I could tell that she is a hard worker who was struggling over the syntax of the textbook, but she picked up all the concepts extremely quickly. She was very compliant and easy to work with, and all she needs is a little extra practice with the concepts. I'm going to send her some more practice problems using the concepts that we learned from this session."
"I walked the student through questions that will be similar to the ones on her final. Some of the concepts were mean, median, mode, standard deviation, frequency distribution of samples, and the concept of percentiles. We plan to meet again tomorrow to go over some geometry and logic topics."