when making a chart, always starts with this number
What is zero
100
when entered in a chart, starts with this number
What is the number one
100
The more samples you take and you can take a non-normal population and make it normal
What is the central limit theorem
100
provides methods for drawing conclusions about a population from sample data
What is statistical inference
100
Ho
What is the null hypothesis
200
use when you have and exact number, entered in the calculator as (n,p,x)
What is binompdf
200
Use when you see words: at most, at least, less than, and more than. Entered in the calculator as (p,x) no 'n'
What is geometric cdf
200
A number that describes the population. It is a fixed number, but in practice we do not know its value because we cannot examine the entire population.
What is a parameter
200
the probability, computed assuming that Ho is true, that the observed outcome would take a value as extreme or more extreme than that actually observed. The smaller this is, the stronger is the evidence against the Ho provided by the data
What is p-value
200
Ha
What is Alternative Hypothesis
300
Used with words: at most, at least, less than, more than. Entered in the calculator as (n,p,x)
What is binomcdf
300
use when you have an exact number, in the calculator entered as: (p,x) no 'n'
What is geometric pdf
300
A number that describes the sample. The value of a statistic is known when we have taken a sample, but it can change from sample to sample. We often use it to estimate an unknown parameter.
What it a statistic
300
this formula gives you confidence interval
What is x bar plus z* multiplied by standard deviation/square root of 'n'
300
You can use the recipe for the standard deviation of p hat only when the population is at least 10 times as large as the sample.
What is Rule of Thumb 1
400
formula for standard deviation and formula for mu (the mean)
What is the square root of 'n' times 'p' times 'q', and what is 'n' times 'p'
400
the formula for standard deviation, and the formula for mu (the mean)
What is (1-p)/p squared, and what is 1/p
400
the distribution of values taken by the statistic in all possible samples of the same size from the same population
What is sampling distribution
400
the upper critical value
What is z*
400
n times p is > or equal to 10
n times q is > or equal to 10
What is Rule of Thumb 2
500
1. success/ failure
2. independent events
3. probability the same
4. set number of observations
What is the binomial setting
500
1. success/failure
2. Independent Events
3. Probability the same
4. Do UNTIL success
What is The Geometric Setting
500
1. take a large number of samples from the sam population
2. calculate the sample mean, x bar, or sample proportion, p hat, for each sample
3. make a histogram
4. examine distribution
What is Sampling Variability
500
this formula gives you the margin of error
What is z* multiplied by the standard deviation/square root of 'n'
500
68% = one standard deviation
95% = two standard deviations
99.7% = three standard deviations