Recent Tutoring Session Reviews
"Today we focused on exercises using the standard normal distribution and z scores. The student does well calculating Z scores and reading the table to identify the proportion associated with different scores."
"This was the first session and it was focused of assisting the student with test preparation. Topics covered included z-test, t-test, and tests for deviation from mean. She is a motivated learner but she did share that she was having some difficulty keeping up with the pace and material of the course."
"The student and I went over Confidence intervals, Z-scores for a single and multiple sample means and sigmas. We reviewed various equations to find margins of error and ideal sample sizes for a given margin of error. We also talk about Z-alphas. We discussed problems for review for the test."
"The student and I discussed two major topics: the normal distribution and the binomial distribution. With the normal distribution, we solved problems related to finding the appropriate "area under the curve" as well as finding critical values given the area, mean, and standard deviation. With the binomial distribution, we discussed and established definitions for probability, p, as well as trials, n. We discussed how to write down all the possible outcomes, and how to find the probability of a single outcome occurring."
"The student had completed the trials test Q6 for homework on the stats worksheet 2. She then did question 7 which was a test of significance for a new drug to lower high blood pressure. We used the TI Stat Z Test for a two sample difference in means and got a p value of .07 = fail to reject the null. She then worked through stats worksheet 3. The student is getting better at working these problems with the repeated practice. She has problem 7 to complete for homework which is a test of significance relating to elevated heart rate after a bout of exercise. Also we discussed some issues with her engineering project which is an elliptical pool table. One suggestion was to line the cushion with square sectioned elastic. This will improve the bounce of some of the harder balls."
"The student and I started by going over his homework from Chapter 4, clarifying concepts like discrete and continuous variables, how to determine dependence or independence mathematically, and how this is represented in Venn diagrams. He has a new version of the textbook, and did questions from Chapter 4 for homework. I will correct this over the weekend. We then moved into the new material in the new textbook, in which he described to me how to use cumulative binomial probability distribution charts, and we analyzed one at length. More work could be done on this area to get a better grasp of the material, so during the next lesson, we will go over the new Chapter 4 conceptually from the beginning. He was assigned the whole chapter as homework reading, as well as the odd-numbered supplementary exercises at the end of the chapter. He was attentive and curious throughout, and it's a joy watching him grapple successfully with the nuances of statistics."