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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.
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In this video, I will recap how to use your graphing calculator to access all of the features necessary for Test 1.
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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.
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In this video, we will discuss what a P-value is and we also complete HW 4 question 46 starting at 9:35.
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Sampling Distributions of the sample proportion
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Sampling distributions of the sample mean - acceptable level for insect filth
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*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.
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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.
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In this video, I will explain HW 2 Question 8 using the TI-83/84 and Statcrunch.
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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.
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Calculating the sample size needed for a proportion problem
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