Central Limit Theorem

# Central Limit - Central Limit Theorem Click to edit Master subtitle style Question Suppose we wanted to know the average height of all women

This preview shows pages 1–7. Sign up to view the full content.

Click to edit Master subtitle style 3/20/11 Central Limit Theorem

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
3/20/11 Question Suppose we wanted to know the average height of all women attending UST – how could we go about doing this?
3/20/11 Question Suppose we wanted to know the average height of all women attending colleges/universities in Texas – how could we go about doing this?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
3/20/11 In order to get an estimate of the average height, we would take a random sample and use the sample mean to estimate the population mean But why do we use the sample mean?
3/20/11 Sampling Distributions Sample statistics are random variables If we take different samples of size n from a population in a particular study, the sample statistics for the different samples (more than likely) would not be the same Thus, sample statistics can take on different values with probabilities

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
3/20/11 Sampling Distributions Sampling distributions are probability distributions for sample statistics for a given sample size What is of importance is the expected value and variance/standard deviation of the sample statistic (sampling distribution)
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/19/2011 for the course STAT 101 taught by Professor Hughes during the Spring '11 term at Andrews Univeristy.

### Page1 / 16

Central Limit - Central Limit Theorem Click to edit Master subtitle style Question Suppose we wanted to know the average height of all women

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online