Chapter 8 Statistics

10 cards

Statistics - Informed decisions using data


 
  
Created Oct 22, 2008
by
sally63

 

 
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1
Statistical Inference
 
A statement using inormation from a sample to draw conclusions about a population.
2
Sampling distributuion of the sample
 
Is the prob. distrib. of all possible values of the random variable x computed from a sample...
3
Law of Large Numbers
 
As additional observations are added to the sample, the difference between the sample mean,...
4
Standard error of the mean
 
the standard deviation of the sampling distribution of x.
5
Central Limit Theorem
 
Regardless of the shape of the pop., the sampling distrib.of x becomes approx. normal as the...
6
The Shape of the Sampling Distr. of x If X is Normal
 
If a random variable X is normally distributed, the distrb. of the sample mean, x, is normally...
7
Exponential Density Function
 
Used
8
What is used to conclude the sampling distribution of x, in a histogram
 
Shape Center Spread
9
Sample Proportion
 
Is a statistic that estimates the population proportion,p.
10
Sampling Distribution of p
 
For a simple random sample size n such that n 0.05N(that is sample size is less than or equal...

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