
In this abbreviated lecture video, we will cover Sections 9.1 and 9.2 We will learn about confidence intervals, margins of error, critical values, and how to calculate necessary sample sizes.


In this video, I will recap how to use your graphing calculator to access all of the features necessary for Test 1.


In this video, we will discuss how to calculate critical values (z sub alpha/2) using Statcrunch, TI 83/84 new and old operating systems, Excel, and other websites.


In this video, we will discuss what a Pvalue is and we also complete HW 4 question 46 starting at 9:35.


Sampling Distributions of the sample proportion


Sampling distributions of the sample mean  acceptable level for insect filth


*Warning: The font gets blurry. I will rerecord this video, but I probably will not get it posted by Test 3. You can try maximizing the window size.


In this lecture video, we will discuss how to verify whether a distribution is a discrete probability distributions. We will also discuss how to calculate its mean and standard deviation.




In this video, I will explain HW 2 Question 8 using the TI83/84 and Statcrunch.




In this video lecture, we will cover Sections 1.6 and 2.1. We will use Statcrunch to analyze qualitative data. We will also upload and save your project data in Statcrunch.


Calculating the sample size needed for a proportion problem
