Secondary Catalogue

Series: Sampling


Conditions for Inference with the SDSM

Conditions for Inference with the SDSM

In order to make statistical inferences using the sampling distribution of the sample mean, we have to meet three conditions with our sample. It must be normal, large enough, and independent. In this video we'll talk about the specific definition...Show More
Conditions for Inference with the SDSP

Conditions for Inference with the SDSP

In order to make statistical inferences using the sampling distribution of the sample proportion, we have to meet three conditions with our sample. It must be normal, large enough, and independent. In this video we'll talk about the specific...Show More
Confidence Interval for the Mean

Confidence Interval for the Mean

In this video we'll look at how to build a confidence interval around the mean of a population. The confidence level is something that we choose based on how confident we want to be in our conclusion. Of course, it's intuitive to think that we...Show More
Confidence Interval for the Proportion

Confidence Interval for the Proportion

In this video we'll look at how to build a confidence interval around the proportion of a population. The confidence level is something that we choose based on how confident we want to be in our conclusion. Of course, it's intuitive to think that...Show More
Sampling and Bias

Sampling and Bias

In this video we discuss all different types of sampling techniques and procedures and the types of bias that we can introduce in sampling. It's important that we understand possible bias in our sample, because we're using the sample as the...Show More
Sampling Distribution of the Sample Mean

Sampling Distribution of the Sample Mean

The sampling distribution of the sample mean is created when we take every possible sample from our population, calculate the sample mean for each sample, and the plot all of those samples into a probability distribution. The SDSM is what allows...Show More
Sampling Distribution of the Sample Proportion

Sampling Distribution of the Sample Proportion

The sampling distribution of the sample proportion is created when we take every possible sample from our population, calculate the sample proportion for each sample, and the plot all of those samples into a probability distribution. The SDSP is...Show More
The Student’s T-Distribution

The Student’s T-Distribution

The student's t-distribution is another probability distribution, very similar to the normal distribution. In fact, the values we find from the t-table are often almost identicial to the values we find from the z-table. But under certain...Show More
Types of Studies

Types of Studies

In this video we'll look at different types of studies we can run, including observational and experimental studies.