Parameter associated with population/Not sample
Used to estimate unknown value of population parameter
Confidence Intervals, Interval of values that should cover true, unknown value
Hypothesis tests, Uses sample data to attempt to reject a hypothesis about a population., Null Value, Value indicating nothing of interest is happening., Statistical Significance, Rejecting the idea that observed results are plausible if null value is correct
Used for poupulation means
Notation for sample means
Used for population proportions
Used for sample proportions
What proportion or percentage....?
Compare some feature of two populations
Average of variable for everyone in population
Differences for entire population of possible pairs.
Estimate value of difference of mean/test hypothesis that difference is 0
Standard deviation of x-bar, Standard deviation of sampling distribution of sample mean
Standard deviation of p-hat, Standard deviation of sampling distribution of a sample proportion
Standard Error, Describes estimated value of standard deviation of a statistic