110_lec16_Simulation_Expected_Values

110_lec16_Simulation_Expected_Values - A sampling...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
A sampling Distribution is a Probability Model Recall a sampling distribution describes the values assumed by a statistic upon repeated sampling. Think of a sampling distribution as assigning probabilities to the values the statistic can take. We can’t predict the outcome of one sample, but the outcomes of many samples have a regular pattern.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Sampling Distribution A simple random sample of 1523 adults are asked whether they bought a lottery ticket in the last 12 months. What is the statistic? The sampling distribution for has a normal distribution. 1523 yes" " say number who ˆ = p p ˆ
Background image of page 2
Sampling Distribution for p ˆ
Background image of page 3

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

View Full DocumentRight Arrow Icon
Sampling Distribution for Estimate the mean. Estimate the standard deviation. In the long run, 95% of the ‘s are between _________ and _________. 10% of the time, is below ________. p ˆ p ˆ p ˆ
Background image of page 4
Probability : the proportion of times that an outcome would occur in a very long series of repetitions. Based on data from many repetitions (relative frequency) or Based theory (theoretical). Personal Probability : a number between 0 and 1 that expresses an individual’s judgment of how likely an outcome is. Often refers to one time event.
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/16/2011 for the course STAT 110 taught by Professor Johnson during the Spring '07 term at South Carolina.

Page1 / 14

110_lec16_Simulation_Expected_Values - A sampling...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online