a statistic that provides an estimate of a population parameter
pointestimator
The value of a statistic from a sample
pointestimate
gives an interval of plausible values for a parameter
c%confienceinterval
A confidence interval is sometimes refereed to as
intervalestimate
The difference between the point estimate and the parameter value will be less than this
marginoferror
gives the overall success rate of the method for calculating the confidence Interval
confidencelevelc
As the sample size n increases the standard deviation of the statistic does what?
decrease
When the standard deviation of a statistic is estimate from data, he result is called this.
standarderror
also known as standard error of the mean
standarerrorofsamplemean
a formal procedure for using observed data to decide between two competing claims
significancetest
This is the claim we seek evidence against
nullhypothesis
The claim we hope or suspect to be true instead of the null hypothesis
alternativehypothesis
The alternative hypothesis is this if it states that a parameter is larger than the null hypothesis value or if it states that the parameter is smaller than the null value
one-sided
The alternative hypothesis is this if it states that the parameter is different from the null hypothesis value(it could be either larger or smaller)
two-sided
The probability that measures the strength of the evidence against the null hypothesis and in favor of the alternative hypothesis
p-value
If our sample result is too unlikely to have happened by chance assuming the null hypothesis is true, then you do this
reject
If there is no convincing evidence for the alternative hypothesis, then you do this
failtoreject
If we reject the null hypothesis when it is actually true
typeierror
If we fail to reject the null hypothesis when the alternative hypothesis is actually true.
typeiierror
if the p value is smaller than the significance level the data is statistically significant where?
Alphalevel