Chapter 7 - Chapter7 1 RandomSample selected ,wemakenrandom...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 7 Sampling Distributions 1
Background image of page 1

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

View Full Document Right Arrow Icon
Chapter 7 - Sampling Distributions DSC 205 Random Sample: – if we select n elements from a population in  such a way that every set of n elements in the  population has the same change of being  selected.  – In order to select a random sample of n  elements from a population, we make n random  selections – one at a time – from the population.  On each selection, we give every element  remaining in the population for that selection the  same chance of being chose. We want to randomly select 10 Miami Students.  What scenarios below reflect random sampling? 1. Go to Shriver during lunch hour and pick 10 people. 2
Background image of page 2
Chapter 7 - Sampling Distributions DSC 205 Sampling Distribution of the sample mean Example. There are 6 possible prizes in a game show and the participant has to select one from the six envelopes that contain the check with the prize: 10 20 30 40 50 60 µ = 35 σ = 17.08 If we graph the distribution we’ll see it is uniform. Histogram: 3 _ X Probability distribution of the population of all possible sample means obtained from all possible samples of the same size.
Background image of page 3

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

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 12

Chapter 7 - Chapter7 1 RandomSample selected ,wemakenrandom...

This preview shows document pages 1 - 4. Sign up to view the full document.

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